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SWEET NOON TO ALL
Diabetes Mellitus
Definition
• A multisystem disease related to:
– Abnormal insulin production, or
– Impaired insulin utilization, or
– Both of the above
• Leading cause of heart disease, stroke, adult
blindness, and non-traumatic lower limb
amputations
Normal Insulin Metabolism
• Insulin
– Produced by the  cells of the islets of
Langherans of the pancreas
– Facilitates normal glucose range of 3.9
– 6.7 mmol/L
Normal Insulin Metabolism
• Promotes glucose transport from the
blood stream across the cell
membrane to the cytoplasm of the
cell
Normal Insulin Metabolism
•  Insulin after a meal:
• Stimulates storage of glucose as
glycogen
• Inhibits gluconeogenesis
• Enhances fat deposition in adipose
tissue
• Increases protein synthesis
Normal Insulin Metabolism
• Fasting state
– Counter-regulatory hormones (especially
glucagon) stimulate glycogen  glucose
• When glucose unavailable during fasting
state
– Lipolysis (fat breakdown)
– Proteolysis (amino acid breakdown)
ALTERED CHO METABOLISM
 Insulin

 Glucose Utilization
+
 Glycogenolysis

Hyperglycemia

Glucosuria
 (osmotic diuresis)

Polyuria*
(and electrolyte imbalance)

Polydipsia*
* Hallmark symptoms of diabetes
ALTERED PROTEIN METABOLISM
 Insulin

 Protein Catabolism

 Gluconeogenesis
(amino acids  glucose)

Hyperglycemia

Weight Loss and Fatigue
ALTERED PROTEIN METABOLISM
 Insulin

 Protein Catabolism

 Gluconeogenesis
(amino acids  glucose)

Hyperglycemia

Weight Loss and Fatigue
ALTERED FAT METABOLISM
 Insulin

 Lipolysis

 Free fatty acids + ketones

Acidosis + Weight Loss
Type 1 Diabetes Mellitus
• Formerly known as “juvenile onset” or
“insulin dependent” diabetes
• Most often occurs in people under 30
years of age
• Peak onset between ages 11 and 13
Type 1 Diabetes Mellitus
Etiology and Pathophysiology
• Progressive destruction of pancreatic 
cells
• Autoantibodies cause a reduction of 80%
to 90% of normal  cell function before
manifestations occur
Type 1 Diabetes Mellitus
Etiology and Pathophysiology
• Causes:
– Genetic predisposition
• In an individual with a genetic
predisposition, an event such as
virus or toxin triggers autoimmune
destruction of -cells probably over
a period of several years.
Type 1 Diabetes Mellitus
Onset of Disease
• Manifestations develop when the
pancreas can no longer produce insulin
– Rapid onset of symptoms
– Present with impending or actual
ketoacidosis
Type 1 Diabetes Mellitus
Onset of Disease
• Weight loss
• Polydipsia (excessive thirst)
• Polyuria (frequent urination)
• Polyphagia (excessive hunger)
• Weakness and fatigue
• Ketoacidosis
Type 1 Diabetes Mellitus
Onset of Disease
• Diabetic ketoacidosis (DKA)
– Life-threatening complication of Type 1
DM
– Occurs in the absence of insulin
– Results in metabolic acidosis
Clinical Manifestations
Type 1 Diabetes Mellitus
• Polyuria
• Polydipsia
• Polyphagia
• Weight loss
Type 2 Diabetes Mellitus
• Accounts for 90% of patients with diabetes
• Usually occurs in people over 40 years old
• 80-90% of patients are overweight
Type 2 Diabetes Mellitus
Etiology and Pathophysiology
• Insulin resistance
– Body tissues do not respond to insulin
– Results in hyperglycemia
• Decreased (but not absent) production of
insulin
Type 2 Diabetes Mellitus
Onset of Disease
• Gradual onset
• Person may go many years with undetected
hyperglycemia
• Marked hyperglycemia (27.6 – 55.1
mmol/L)
Risk factors
• Type 2 DM
– Family History
– Obesity
– Habitual physical inactivity
– Previously identified impaired glucose
tolerance
(IGT) or impaired fasting glucose (IFG)
– Hypertension
– Hyperlipidemia
Clinical Manifestations
Type 2 Diabetes Mellitus
• Non-specific symptoms
• Fatigue
• Recurrent infections
• Prolonged wound healing
• Visual changes
Gestational Diabetes
• Develops during pregnancy
• Detected at 24 to 28 weeks of gestation
• Associated with risk for cesarean delivery,
perinatal death, and neonatal complications
Secondary Diabetes
• Results from another medical condition or
due to the treatment of a medical condition
that causes abnormal blood glucose levels
– Cushing syndrome (e.g. steroid administration)
– Hyperthyroidism
– Parenteral nutrition
Diabetes Mellitus
Diagnostic Studies
1. Glucosuria
– To detect glucose in urine by a paper strip
• Normal kidney threshold for glucose is essential
• 2. Ketonuria
– To detect ketonbodies in urine by a paper strip
3. Fasting blood glucose
– Glucose blood concentration in samples obtained
after at least 8 hours of the last meal
4. Random Blood glucose
– Glucose blood concentration in samples obtained at
any time regardless the time of the last meal
5. Glucose tolerance test
– 75 gm of glucose are given to the patient with 300 ml
of water after an overnight fast
– Blood samples are drawn 1, 2, and 3 hours after
taking the glucose
– This is a more accurate test for glucose utilization if
the fasting glucose is borderline
Diabetes Mellitus
Collaborative Care
• Goals of diabetes management:
– Reduce symptoms
– Promote well-being
– Prevent acute complications
– Delay onset and progression of long-term
complications
Diabetes Mellitus
Collaborative Care
• Patient teaching
• Nutritional therapy
• Drug therapy
• Exercise
• Self-monitoring of blood glucose
pharmacological therapy
- Insulin (Type 1 and Type 2 DM)
- Sulfonylurea (Type 2 DM)
- Biguanides (Type 2 DM)
- Meglitinides (Type 2 DM)
- Thiazolidinediones Glitazones (Type 2
DM)
 a-Glucosidase inhibitors (Type 2 DM)
Diabetes Mellitus
Drug Therapy: Insulin
• Exogenous insulin:
– Required for all patient with type 1 DM
– Prescribed for the patient with type 2 DM
who cannot control blood glucose by other
means
Diabetes Mellitus
Drug Therapy: Insulin
• Types of insulin
– Human insulin
• Most widely used type of insulin
• Cost-effective
•  Likelihood of allergic reaction
Diabetes Mellitus
Drug Therapy: Insulin
• Types of insulin
– Insulins differ in regard to onset, peak
action, and duration
– Different types of insulin may be used for
combination therapy
Diabetes Mellitus
Drug Therapy: Insulin
• Types of insulin
– Rapid-acting: Lispro
– *Short-acting: Regular
– *Intermediate-acting: NPH or Lente
– Long-acting: Ultralente, Lantus
Diabetes Mellitus
Drug Therapy: Insulin
• Insulin
– Cannot be taken orally
– Self-administered by SQ injection
Injection Sites
Fig. 47-5
Diabetes Mellitus
Drug Therapy: Insulin
• Insulin delivery methods
– Ordinary SQ injection
– Insulin pen
• preloaded with insulin; “dial” the dose
– Insulin pump
• Continuous “basal” infusion. At mealtime, user
programs to deliver “bolus” infusion that
correlates with amount of CHOs ingested. Allows
tight control and greater flexibility with meals
and activity
Diabetes Mellitus
Drug Therapy: Insulin
• Insulin delivery methods
– Intensive insulin therapy
• Multiple daily injects and frequent SMBG
Diabetes Mellitus
Drug Therapy: Insulin
• Problems with insulin therapy
– Hypoglycemia (BS < 3.9 mmol/L)
• Due to too much insulin in relation to glucose
availability
Diabetes Mellitus
Drug Therapy: Insulin
• Problems with insulin therapy
– Hypoglycemia
– Allergic reactions
• Local inflammatory reaction
– Lipodystrophy
• Hypertrophy or atrophy of SQ tissue r/t frequent
use of same injection site. Less common now b/c
pork and beef insulin infrequently used
Diabetes Mellitus
Drug Therapy: Oral Agents
• Not insulin
• Work to improve the mechanisms in which
insulin and glucose are produced and used
by the body
Diabetes Mellitus
Drug Therapy: Oral Agents
• Increase insulin production by pancreas
• Reduce glucose production by liver
• Enhance insulin sensitivity and glucose
transport into cell
• Slow absorption of carbohydrate in
intestine
1. Sulfonylureas
• Stimulate the pancreatic secretion of insulin
• First generation
• e.g. tolbutamide, chlorpropamide, and acetohexamide
• more potential for drug interactions and side effects
• Second generation
• e.g. glimepiride, glipizide, and glyburide
• less potential for drug interactions and side effects
• All sulfonylurea drugs are equally effective in reducing
the blood glucose when given in equipotent doses.
2. Short-acting Secretogogues
– Repaglinide
– Nateglinide
– Stimulation of the pancreatic
secretion of insulin
– The insulin release is glucose dependent and is
decreased at low blood glucose
– With lower potential for hypoglycemia
(incidence 0.3%)
– Should be given before meal or with the first
bite of each meal. If you skip a meal don’t take
the dose!
3. Biguanides Metformin
(Glucophage
– Reduces hepatic glucose production
– Increases peripheral glucose utilization
– Nausea, vomiting, diarrhea, and anorexia
– Phenformin: another biguanide, was taken off the
market because it causes lactic acidosis in almost
50% of patients
– As a precaution metformin should not be used in
patients with renal insufficiency, CHF, conditions
that lead to hypoxia
4. Glitazones
– Reduces insulin resistance in the periphery
(Sensitize muscle and fat to the action of
insulin) and possibly in the liver
– The onset of action is slow taking 2-3
months to see the full effect
– Edema and weight gain are the most
common side effects. (no hepatotoxicity)
5. a-Glucosidase Inhibitors
• Acarbose - Miglitol
• Prevent the breakdown of sucrose and complex
carbohydrates
– The net effect is to reduce postprandial blood
glucose rise
– Postprandial glucose conc is reduced.
Diabetes Mellitus
Nutritional Therapy
• Within the context of an overall
healthy eating plan, a person with
diabetes can eat the same foods as a
person without diabetes
• Overall goal of nutritional therapy
– Assist people to make changes in
nutrition and exercise habits that will
lead to improved metabolic control
Diabetes Mellitus
Nutritional Therapy
• Type 1 DM
– Diet based on usual food intake, balanced
with insulin and exercise patterns
• Type 2 DM
– Emphasis placed on achieving glucose,
lipid, and blood pressure goals
– Calorie reduction
Management of Diabetes
Management of Diabetes
What is a nutritive diet ?
 Balanced in Nutrition distribution.
 Balanced in Quantity/calories as per
individual needs.
 Balanced in Number of meals.
 Balanced in Timing of meals.
D iet
D iet
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Management of Diabetes
Management of Diabetes
D iet
D iet
Nutritional requirement
 CHO, protein, fat - calorie providing nutrients.
 Vitamins, minerals and water - no calories.
 Fiber - slows absorption gives satiety feeling,
reduces cholesterol, eases bowel movements.
Management of Diabetes
Management of Diabetes
D iet
D iet –
– F ood Pyr amid
F ood Pyr amid
Fats, Oils & Sweets
USE SPARINGLY
Vegetable
Group.
3-5 SERVINGS
Milk, Yogurt &
Cheese Group
2-3 SERVINGS
Meat, Poultry, Fish,
Eggs & Nuts Group.
2-3 SERVINGS
Fruit Group.
2-4 SERVINGS
Bread, Cereal,
Rice, Pasta Group.
6-11 SERVINGS
Source: The Food Guide Pyramid, United States Department of Agriculture.
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Management of Diabetes
Management of Diabetes
D iet
D iet –
– Sour ce of N utr ition
Sour ce of N utr ition
Carbohydrates (CHO)
Carbohydrates (CHO)
They are the main source of energy
Simple CHO
Simple CHO
Root vegetables,
refined flour, sugar,
jaggery, bakery
products, pasta,
sago etc.
(X)
(not preferred)
Complex CHO
Complex CHO
Raw vegetables, whole
grain cereals,dark
green leafy vegetables,
sprouts, whole pulses,
fruits etc.
()
(preferred)
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Management of Diabetes
Management of Diabetes
D iet
D iet –
– Sour ce of N utr ition
Sour ce of N utr ition
Skimmed milk, Paneer,
Curds, Chicken, Sprouted
Legumes/Pulses,
Soya beans/flour, Egg
white, Fish
()
(preferred)
They are the building blocks
needed for growth and repairing tissues
Red meat, Creamy
milk, Nuts, Cheese
(X)
(not preferred)
Proteins
Proteins
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Management of Diabetes
Management of Diabetes
D iet
D iet –
– Sour ce of N utr ition
Sour ce of N utr ition
Saturated
Monounsaturated Polyunsaturated
Remains liquid in room temperature
Remains solid in
room temperature
Fats
Unsaturated
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Management of Diabetes
Management of Diabetes
D iet
D iet –
– Sour ce of N utr ition
Sour ce of N utr ition
Fiber
 It increases the bulk of the diet.
 It helps in decreasing plasma cholesterol,
triglyceride levels, glucose levels.
 It gives the feeling of satiety because of its
water holding property.
Sources
- Covering of pulses and grains.
- Vegetables (raw or half-cooked).
- Whole fruits.
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Management of Diabetes
Management of Diabetes
D iet Planning
D iet Planning
Remember - When there is hypoglycemia
 Check blood glucose level.
 Consume simple carbohydrate.
 Do not panic and overreact.
 Review with the doctor or the educator.
Copyright © Year 2005
Diabetes Mellitus
Nutritional Therapy
• Alcohol
• High in calories
• Promotes hypertriglyceridemia
• Can cause severe hypoglycemia b/c
inhibits glucose production by liver
M an agem en t of D iabet es
Ex er cise
Ex er cise
Copyright © Year 2005
Diabetes Mellitus
Exercises
• Exercise
– Essential part of diabetes management
– Increases insulin sensitivity
– Lowers blood glucose levels
– Decreases insulin resistance
Diabetes Mellitus
• Exercise
– Take small carbohydrate snacks before
30 min during exercise to prevent
hypoglycemia
– Exercise after meals
– Exercise plans should be individualized
– Monitor blood glucose levels before,
during, and after exercise
Management of Diabetes
Management of Diabetes
Exer cise
Exer cise –
– Safety Tips
Safety Tips
 Always test blood sugar before and after
exercise.
 Have at least 15 grams of fast-acting
carbohydrate to treat low blood sugar.
 Always warm up first and cool down after
exercise.
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Management of Diabetes
Management of Diabetes
Exer cise
Exer cise –
– Safety Tips
Safety Tips
 Wear shoes that fit properly and inspect
your feet after activity for blisters or sores.
 Drink lots of water, especially in hot
weather.
Copyright © Year 2005
Management of Diabetes
Management of Diabetes
Exer cise
Exer cise –
– A Few A ler ts
A Few A ler ts
 In full or empty stomach.
 When insulin action is at peak.
 Under extreme temperatures.
 During other illnesses.
 If blood sugar over 250 and Ketones.
 If chest pain occurs during exercise.
Do not exercise
M an agem en t of D i abet es
M onitor ing
M onitor ing
Copyright © Year 2005
Diabetes Mellitus
Monitoring Blood Glucose
• Self-monitoring of blood glucose (SMBG)
– Allows self-management decisions
regarding diet, exercise, and medication
– Important for detecting episodic
hyperglycemia and hypoglycemia
– Patient education is crucial
Extremely useful for outpatient monitoring specially for patients
who need tight control for their glycemic state.
A portable battery operated device that measures the color
intensity produced from adding a drop of blood to a glucose
oxidase paper strip.
e.g. One Touch, Accu-Chek, DEX, Prestige and Precision.
Diabetes Mellitus
Nursing Management
Nursing Diagnoses
• Ineffective therapeutic regimen
• Fatigue
• Risk for infection
• Powerlessness
Diabetes Mellitus
Nursing Management: Planning
• Overall goals:
– Active patient participation
– No episodes of acute hyperglycemic
emergencies or hypoglycemia
– Maintain normal blood glucose levels
– Prevent chronic complications
– Lifestyle adjustment with minimal stress
Diabetes Mellitus
Nursing Management
Nursing Implementation
• Health Promotion
– Identify those at risk
– Routine screening for overweight adults
over age 45
– Diabetes prevention (weight control)
Diabetes Mellitus
Nursing Management
Nursing Implementation
• Ambulatory and Home Care
– Insulin therapy and oral agents
– Personal hygiene
– Medical identification and travel
– Patient and family teaching
Diabetes Mellitus
Nursing Management
• Stress Management
– Emotional and physiological stress increase
BG → hyperglycemia
– Often need more insulin to maintain control
(Type II diabetics normally controlled by
OA may temporarily need insulin)
Diabetes Mellitus
Nursing Management
• Stress Management
– When ill
• Continue regular diet and ↑ intake of non-caloric
fluids
• Take insulin/OA as prescribed and check BG
Q4h
• If BG > 13.3 mmol/L, check urine for ketones
and report moderate to high ketone levels
Com pli cat i on s of D i abet es
Copyright © Year 2005
Complications of Diabetes
Complications of Diabetes
Chronic
Microvascular
complications
Macrovascular
complications
Acute
Hyperglycemia
Hypoglycemia
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Complications of Diabetes
Complications of Diabetes
A cute Complications
A cute Complications
Hyperglycemia
Hypoglycemia
Acute
Copyright © Year 2005
Complications of Diabetes
Complications of Diabetes
H yper glycemia
H yper glycemia
Watch for: Symptoms noticed within hours to several days
 Increased Thirst & Urination.
 High Blood Glucoselevels.
 K etones in urine
 Fatigue.
Copyright © Year 2005
Complications of Diabetes
Complications of Diabetes
H yper glycemia
H yper glycemia -
- Causes
Causes
Too much food
Emotional Stress
Not enough exercise Infection, fever, illness
Not enough insulin
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Complications of Diabetes
Complications of Diabetes
H yper glycemia
H yper glycemia
What to do:
 Call Doctor immediately.
 Take fluids without sugar if able to
swallow.
 Test Blood sugar Frequently.
 Test urine for K etones.
Copyright © Year 2005
Complications of Diabetes
Complications of Diabetes
High blood sugar levels can lead to:
 Diabetic Keto Acidosis (DKA).
 Hyperglycemic Hyperosmolar Non-
ketotic Syndrome (HHNS).
H yper glycemia
H yper glycemia
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Complications of Diabetes
Complications of Diabetes
D iabetic K eto A cidosis (D K A
D iabetic K eto A cidosis (D K A )
)
 The blood glucose >250 mg/dl.
 pH <7.3
 Urine ketones moderately positive.
 Serum ketones positive in 1:4 dilution.
Complications of Diabetes
Complications of Diabetes
D iabetic K eto A cidosis
D iabetic K eto A cidosis -
- Causes
Causes
Too much food
Emotional Stress
Missed insulin or Tablets
Infection, fever, illness
Interfering Drugs
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Complications of Diabetes
Complications of Diabetes
D iabetic K eto A cidosis
D iabetic K eto A cidosis –
– Signs & Symptoms
Signs & Symptoms
Lethargy
Changed mental status Pain in the abdomen
Urination Thirst
Fruity smell
in the breath
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Complications of Diabetes
Complications of Diabetes
D iabetic K eto A cidosis (D K A )
D iabetic K eto A cidosis (D K A )
Management Goals
 Restore & maintain normal glucose
metabolism.
 Correct fluid & electrolyte imbalance.
 Prevent further complications.
 Provide education and follow-up.
Copyright © Year 2005
Complications of Diabetes
Complications of Diabetes
D iabetic K eto A cidosis (D K A )
D iabetic K eto A cidosis (D K A )
"Avoid anymore DKA"
"Avoid anymore DKA"
Patient & family
Education
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Diabetes Mellitus
Acute Complication: HHNS
• BG > 44.5 mmol/L
• Occurs in Type II diabetics (often elderly)
• Causes: similar to DKA
• Pathophysiology
– Similar to DKA, except there is enough
insulin to prevent ketosis (fat breakdown),
but not enough to prevent hyperglycemia
– Extreme hyperglycemia causes
intracellular dehydration d/t movement of
water from cells
Diabetes Mellitus
Acute Complication: HHNS
• Clincial manifestation dehydration,
weakness, polyuria, polydipsia,
somnolence, seizures, coma
– Treatment
• Re-hydrate
• Insulin IV
• Monitor closely
Complications of Diabetes
Complications of Diabetes
H ypoglycemia
 Encountered mostly by taking patients on
Insulin and drugs that simulate insulin
secretion.
 Should be alert when blood sugar is < 70
mg/dl.
 Severity, glucose level and signs & symptom
may differ in different people.
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Complications of Diabetes
Complications of Diabetes
H ypoglycemia
H ypoglycemia -
- Symptoms
Symptoms
Watch for: Symptoms noticed within hours to several days
 Cold sweats, faintness, dizziness.
 Headache.
 Pounding of heart or trembling.
 Blurred vision
 Hunger
 Inability to awaken
 Personality changes.
 Fatigue.
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Complications of Diabetes
Complications of Diabetes
H ypoglycemia
H ypoglycemia -
- Causes
Causes
Excessive exercise
Too much insulin
Not enough food/
Delayed meals
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Complications of Diabetes
Complications of Diabetes
H ypoglycemia
H ypoglycemia -
- Tr eatment
Tr eatment
Treatment
Self-treated with
simple sugar,
glucose tablets or
sweetened fluids
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Complications of Diabetes
Complications of Diabetes
H ypoglycemia
H ypoglycemia -
- Tr eatment
Tr eatment
Treated with help of
glucose tablets /
sugar with additional
food
Treatment
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Complications of Diabetes
Complications of Diabetes
H ypoglycemia
H ypoglycemia -
- Tr eatment
Tr eatment
IV glucose or
injection glucagon
(s/c)
Treatment
Complications of Diabetes
Complications of Diabetes
H ypoglycemia
H ypoglycemia -
- Pr ecautions
Pr ecautions
 Learn about hypoglycemia.
 Adhere to the timings and quantity of food and
medicine
 Carry simple carbohydrate containing snacks always.
 Do not keep long gap between meals.
 In case of longer sports activities, take breaks,
drink lot of water and have snacks.
 Keep injection glucagon ready
 Educate family members & co-workers
 Carry a medical identity card
Copyright © Year 2005
Complications of Diabetes
Complications of Diabetes
H ypoglycemia
H ypoglycemia
Remember - When there is hypoglycemia
 Check blood glucose level
 Consume simple carbohydrate.
 Do not panic and over react.
 Review with the doctor or the educator.
Copyright © Year 2005
Complications of Diabetes
Complications of Diabetes
Chr onic Complications
Chr onic Complications
Microvascular
complications
Macrovascular
complications
Chronic
Copyright © Year 2005
Complications of Diabetes
Complications of Diabetes
M icr ovascular Complications
M icr ovascular Complications
Diabetic Retinopathy
Diabetic Nephropathy
Diabetic Neuropathy
Microvascular Complications
Copyright © Year 2005
Complications of Diabetes
Complications of Diabetes
D iabetic Retinopathy
D iabetic Retinopathy
 Diabetic retinopathy is a potentially
blinding complication of diabetes that
damages the eye's retina.
 It occurs when diabetes damages the tiny
blood vessels in the retina. At this point,
most people do not notice any changes in
their vision.
Copyright © Year 2005
Complications of Diabetes
Complications of Diabetes
D iabetic Retinopathy
D iabetic Retinopathy
 Macular edema: damaged blood vessels
leak fluid and lipids onto the macula. The fluid
makes the macula swell, blurring vision.
 Proliferative stage: Fragile, new blood
vessels grow along the retina and in the clear,
gel-like vitreous that fills the inside of the eye.
Without timely treatment, these new blood
vessels bleed, cloud vision, and destroy the
retina.
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Complications of Diabetes
Complications of Diabetes
D iabetic Retinopathy
D iabetic Retinopathy -
- D etection
D etection
Diabetic retinopathy is detected during
an eye examination that includes:
 Visual acuity test: How well one see various
distances.
 Pupil dilation: Widen the pupil to see more of the
retina for signs of diabetic retinopathy.
 Ophthalmoscopy: Examination of the retina using
an ophthalmoscope.
 Tonometry: A standard test that determines the fluid
pressure inside the eye. Elevated pressure is a
possible sign of glaucoma.
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Complications of Diabetes
Complications of Diabetes
D iabetic Retinopathy
D iabetic Retinopathy -
- Tr eatment
Tr eatment
There are two treatments for diabetic
retinopathy:
 Laser Surgery
 Vitrectomy
Copyright © Year 2005
Complications of Diabetes
Complications of Diabetes
D iabetic Retinopathy
D iabetic Retinopathy -
- Tr eatment
Tr eatment
A vitrectomy is performed if you have a lot
of blood in the vitreous. It involves removing
the cloudy vitreous and replacing it with a
salt solution. Because the vitreous is mostly
water, you will notice no change between
the salt solution and the normal vitreous.
Copyright © Year 2005
Complications of Diabetes
Complications of Diabetes
M icr ovascular Complications
M icr ovascular Complications
Diabetic Nephropathy
 When blood sugar levels are high, sugar is passed
into the urine.
 When this happens, the pressures are higher in the
kidney filtering system (the glomerulus) and
changes in the small blood vessels of the kidney
can occur.
 This increased pressure causes damage to the
filtering system so that some proteins start leaking
through the filter and appear in the urine.
Copyright © Year 2005
Complications of Diabetes
Complications of Diabetes
D iabetic N eur opathy
D iabetic N eur opathy
 Diabetic neuropathy, or “damage to the
nerves”, is a condition seen after puberty,
usually in people who have had very high
sugar levels for a long time.
 Neuropathy may cause
 Gastrointestinal problems, Urinary Tract Infection,
too much of sweating, dryness of skin, severe pain
on lower extremities, loss of sensation, heart
problems and orthostatic hypotension.
 Diabetic foot.
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Complications of Diabetes
Complications of Diabetes
Sensory
Diabetic Neuropathy
Autonomic Motor
D iabetic N eur opathy
D iabetic N eur opathy
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Complications of Diabetes
Complications of Diabetes
Sensor y N eur opathy
Sensor y N eur opathy
 Sensory Neuropathy affects one of the
nerves that take information to brain about
sensation.
 Leads to pain, numbness, tingling in
extremities.
Copyright © Year 2005
Complications of Diabetes
Complications of Diabetes
A utonomic N eur opathy
A utonomic N eur opathy
 Autonomic Neuropathy affects the nerves
that control involuntary activities such as
action of stomach, heart and blood pressure.
 Leads to Diabetic Diarrhea, Impotence,
bladder is unable to empty completely,
orthostatic hypotension and the ability to
exercise.
Copyright © Year 2005
Complications of Diabetes
Complications of Diabetes
M otor N eur opathy
M otor N eur opathy
 Motor Neuropathy affects the nerves that
carry signals to muscles like walking,
running.
 Leads to muscle weakness.
Complications of Diabetes
Complications of Diabetes
D iabetic N eur opathy
D iabetic N eur opathy
 Diagnosis
 Weak Knee jerk/ ankle jerk.
 Electromyogram
 Nerve Conduction Studies
Copyright © Year 2005
Complications of Diabetes
Complications of Diabetes
D iabetic N eur opathy
D iabetic N eur opathy
 Treatment
 No way to heal or replace damaged
nerve cells.
 Keep Blood Glucose levels as close to
normal as possible.
 Exercise
 Painkillers/ Antidepressants.
Copyright © Year 2005
Complications of Diabetes
Complications of Diabetes
Per ipher al A r ter ial D isease
Per ipher al A r ter ial D isease
 Peripheral arterial disease (PAD) is a form of
peripheral vascular disease that occurs when blood
vessels in the legs are narrowed or blocked by
atherosclerosis, decreasing blood flow to the feet
and legs.
 One in three people with diabetes over age 50 is
estimated to have this condition.
 If undetected, PAD can lead to amputations of the
lower limbs and increase a person's risk of
intermittent claudication.
Copyright © Year 2005
Complications of Diabetes
Complications of Diabetes
Severely infected foot Blood decompression
Neuro-ischemic foot
D iabetic F oot
D iabetic F oot
Copyright © Year 2005
Complications of Diabetes
Complications of Diabetes
 Nerves damaged by the disease are not as
sensitive to pain, heat or cold, so people with
diabetes can injure their feet, not know it, and
develop infections.
 Poor circulation compounds the problem, by
reducing the number of infection-fighting white
blood cells that are carried to and from the wound
site. If left untreated, a slow-to-heal and infected
wound (ulcer) can, ultimately, lead to amputation.
D iabetic F oot
D iabetic F oot
Copyright © Year 2005
Complications of Diabetes
Complications of Diabetes
D iabetic F oot
D iabetic F oot -
- Symptoms
Symptoms
 Tingling, numbness, pain, or the loss of
sensation in the feet.
 Restricted blood flow to the legs and
feet.
 Foot deformities, including hammertoes.
 Stiff joints.
Copyright © Year 2005
Complications of Diabetes
Complications of Diabetes
Foot Car e
Foot Car e -
- D Os
D Os
 Wash feet daily.
 Inspect feet and toes, especially in between,
daily.
 Wear thick, soft socks.
 Cut toenails straight across.
 Be measured and fitted each time you buy a
new pair of shoes.
 Lose weight.
 Exercise.
Complications of Diabetes
Complications of Diabetes
F oot Car e
F oot Car e –
– D on’ts
D on’ts
 Never go barefoot.
 Avoid high heels, sandals and shoes with
pointed toes.
 Don’t smoke and drink only in moderation.
 Avoid soaking your feet.
Copyright © Year 2005
Complications of Diabetes
Complications of Diabetes
 Don’t wear anything that is too tight
around the legs.
 Never use heating pads or hot water
bottles on cold feet.
 Avoid over the counter medications for
corns, calluses, or warts.
F oot Car e
F oot Car e –
– D on’ts
D on’ts
Copyright © Year 2005

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diabetes.ppt

  • 2.
  • 3. Diabetes Mellitus Definition • A multisystem disease related to: – Abnormal insulin production, or – Impaired insulin utilization, or – Both of the above • Leading cause of heart disease, stroke, adult blindness, and non-traumatic lower limb amputations
  • 4. Normal Insulin Metabolism • Insulin – Produced by the  cells of the islets of Langherans of the pancreas – Facilitates normal glucose range of 3.9 – 6.7 mmol/L
  • 5. Normal Insulin Metabolism • Promotes glucose transport from the blood stream across the cell membrane to the cytoplasm of the cell
  • 6. Normal Insulin Metabolism •  Insulin after a meal: • Stimulates storage of glucose as glycogen • Inhibits gluconeogenesis • Enhances fat deposition in adipose tissue • Increases protein synthesis
  • 7. Normal Insulin Metabolism • Fasting state – Counter-regulatory hormones (especially glucagon) stimulate glycogen  glucose • When glucose unavailable during fasting state – Lipolysis (fat breakdown) – Proteolysis (amino acid breakdown)
  • 8. ALTERED CHO METABOLISM  Insulin   Glucose Utilization +  Glycogenolysis  Hyperglycemia  Glucosuria  (osmotic diuresis)  Polyuria* (and electrolyte imbalance)  Polydipsia* * Hallmark symptoms of diabetes
  • 9. ALTERED PROTEIN METABOLISM  Insulin   Protein Catabolism   Gluconeogenesis (amino acids  glucose)  Hyperglycemia  Weight Loss and Fatigue
  • 10. ALTERED PROTEIN METABOLISM  Insulin   Protein Catabolism   Gluconeogenesis (amino acids  glucose)  Hyperglycemia  Weight Loss and Fatigue
  • 11. ALTERED FAT METABOLISM  Insulin   Lipolysis   Free fatty acids + ketones  Acidosis + Weight Loss
  • 12. Type 1 Diabetes Mellitus • Formerly known as “juvenile onset” or “insulin dependent” diabetes • Most often occurs in people under 30 years of age • Peak onset between ages 11 and 13
  • 13. Type 1 Diabetes Mellitus Etiology and Pathophysiology • Progressive destruction of pancreatic  cells • Autoantibodies cause a reduction of 80% to 90% of normal  cell function before manifestations occur
  • 14. Type 1 Diabetes Mellitus Etiology and Pathophysiology • Causes: – Genetic predisposition • In an individual with a genetic predisposition, an event such as virus or toxin triggers autoimmune destruction of -cells probably over a period of several years.
  • 15.
  • 16. Type 1 Diabetes Mellitus Onset of Disease • Manifestations develop when the pancreas can no longer produce insulin – Rapid onset of symptoms – Present with impending or actual ketoacidosis
  • 17. Type 1 Diabetes Mellitus Onset of Disease • Weight loss • Polydipsia (excessive thirst) • Polyuria (frequent urination) • Polyphagia (excessive hunger) • Weakness and fatigue • Ketoacidosis
  • 18. Type 1 Diabetes Mellitus Onset of Disease • Diabetic ketoacidosis (DKA) – Life-threatening complication of Type 1 DM – Occurs in the absence of insulin – Results in metabolic acidosis
  • 19. Clinical Manifestations Type 1 Diabetes Mellitus • Polyuria • Polydipsia • Polyphagia • Weight loss
  • 20. Type 2 Diabetes Mellitus • Accounts for 90% of patients with diabetes • Usually occurs in people over 40 years old • 80-90% of patients are overweight
  • 21. Type 2 Diabetes Mellitus Etiology and Pathophysiology • Insulin resistance – Body tissues do not respond to insulin – Results in hyperglycemia • Decreased (but not absent) production of insulin
  • 22. Type 2 Diabetes Mellitus Onset of Disease • Gradual onset • Person may go many years with undetected hyperglycemia • Marked hyperglycemia (27.6 – 55.1 mmol/L)
  • 23. Risk factors • Type 2 DM – Family History – Obesity – Habitual physical inactivity – Previously identified impaired glucose tolerance (IGT) or impaired fasting glucose (IFG) – Hypertension – Hyperlipidemia
  • 24. Clinical Manifestations Type 2 Diabetes Mellitus • Non-specific symptoms • Fatigue • Recurrent infections • Prolonged wound healing • Visual changes
  • 25. Gestational Diabetes • Develops during pregnancy • Detected at 24 to 28 weeks of gestation • Associated with risk for cesarean delivery, perinatal death, and neonatal complications
  • 26. Secondary Diabetes • Results from another medical condition or due to the treatment of a medical condition that causes abnormal blood glucose levels – Cushing syndrome (e.g. steroid administration) – Hyperthyroidism – Parenteral nutrition
  • 27. Diabetes Mellitus Diagnostic Studies 1. Glucosuria – To detect glucose in urine by a paper strip • Normal kidney threshold for glucose is essential • 2. Ketonuria – To detect ketonbodies in urine by a paper strip
  • 28. 3. Fasting blood glucose – Glucose blood concentration in samples obtained after at least 8 hours of the last meal 4. Random Blood glucose – Glucose blood concentration in samples obtained at any time regardless the time of the last meal
  • 29. 5. Glucose tolerance test – 75 gm of glucose are given to the patient with 300 ml of water after an overnight fast – Blood samples are drawn 1, 2, and 3 hours after taking the glucose – This is a more accurate test for glucose utilization if the fasting glucose is borderline
  • 30. Diabetes Mellitus Collaborative Care • Goals of diabetes management: – Reduce symptoms – Promote well-being – Prevent acute complications – Delay onset and progression of long-term complications
  • 31. Diabetes Mellitus Collaborative Care • Patient teaching • Nutritional therapy • Drug therapy • Exercise • Self-monitoring of blood glucose
  • 32. pharmacological therapy - Insulin (Type 1 and Type 2 DM) - Sulfonylurea (Type 2 DM) - Biguanides (Type 2 DM) - Meglitinides (Type 2 DM) - Thiazolidinediones Glitazones (Type 2 DM)  a-Glucosidase inhibitors (Type 2 DM)
  • 33. Diabetes Mellitus Drug Therapy: Insulin • Exogenous insulin: – Required for all patient with type 1 DM – Prescribed for the patient with type 2 DM who cannot control blood glucose by other means
  • 34. Diabetes Mellitus Drug Therapy: Insulin • Types of insulin – Human insulin • Most widely used type of insulin • Cost-effective •  Likelihood of allergic reaction
  • 35. Diabetes Mellitus Drug Therapy: Insulin • Types of insulin – Insulins differ in regard to onset, peak action, and duration – Different types of insulin may be used for combination therapy
  • 36. Diabetes Mellitus Drug Therapy: Insulin • Types of insulin – Rapid-acting: Lispro – *Short-acting: Regular – *Intermediate-acting: NPH or Lente – Long-acting: Ultralente, Lantus
  • 37. Diabetes Mellitus Drug Therapy: Insulin • Insulin – Cannot be taken orally – Self-administered by SQ injection
  • 39. Diabetes Mellitus Drug Therapy: Insulin • Insulin delivery methods – Ordinary SQ injection – Insulin pen • preloaded with insulin; “dial” the dose – Insulin pump • Continuous “basal” infusion. At mealtime, user programs to deliver “bolus” infusion that correlates with amount of CHOs ingested. Allows tight control and greater flexibility with meals and activity
  • 40. Diabetes Mellitus Drug Therapy: Insulin • Insulin delivery methods – Intensive insulin therapy • Multiple daily injects and frequent SMBG
  • 41. Diabetes Mellitus Drug Therapy: Insulin • Problems with insulin therapy – Hypoglycemia (BS < 3.9 mmol/L) • Due to too much insulin in relation to glucose availability
  • 42. Diabetes Mellitus Drug Therapy: Insulin • Problems with insulin therapy – Hypoglycemia – Allergic reactions • Local inflammatory reaction – Lipodystrophy • Hypertrophy or atrophy of SQ tissue r/t frequent use of same injection site. Less common now b/c pork and beef insulin infrequently used
  • 43. Diabetes Mellitus Drug Therapy: Oral Agents • Not insulin • Work to improve the mechanisms in which insulin and glucose are produced and used by the body
  • 44. Diabetes Mellitus Drug Therapy: Oral Agents • Increase insulin production by pancreas • Reduce glucose production by liver • Enhance insulin sensitivity and glucose transport into cell • Slow absorption of carbohydrate in intestine
  • 45. 1. Sulfonylureas • Stimulate the pancreatic secretion of insulin • First generation • e.g. tolbutamide, chlorpropamide, and acetohexamide • more potential for drug interactions and side effects • Second generation • e.g. glimepiride, glipizide, and glyburide • less potential for drug interactions and side effects • All sulfonylurea drugs are equally effective in reducing the blood glucose when given in equipotent doses.
  • 46. 2. Short-acting Secretogogues – Repaglinide – Nateglinide – Stimulation of the pancreatic secretion of insulin – The insulin release is glucose dependent and is decreased at low blood glucose – With lower potential for hypoglycemia (incidence 0.3%) – Should be given before meal or with the first bite of each meal. If you skip a meal don’t take the dose!
  • 47. 3. Biguanides Metformin (Glucophage – Reduces hepatic glucose production – Increases peripheral glucose utilization – Nausea, vomiting, diarrhea, and anorexia – Phenformin: another biguanide, was taken off the market because it causes lactic acidosis in almost 50% of patients – As a precaution metformin should not be used in patients with renal insufficiency, CHF, conditions that lead to hypoxia
  • 48. 4. Glitazones – Reduces insulin resistance in the periphery (Sensitize muscle and fat to the action of insulin) and possibly in the liver – The onset of action is slow taking 2-3 months to see the full effect – Edema and weight gain are the most common side effects. (no hepatotoxicity)
  • 49. 5. a-Glucosidase Inhibitors • Acarbose - Miglitol • Prevent the breakdown of sucrose and complex carbohydrates – The net effect is to reduce postprandial blood glucose rise – Postprandial glucose conc is reduced.
  • 50. Diabetes Mellitus Nutritional Therapy • Within the context of an overall healthy eating plan, a person with diabetes can eat the same foods as a person without diabetes • Overall goal of nutritional therapy – Assist people to make changes in nutrition and exercise habits that will lead to improved metabolic control
  • 51. Diabetes Mellitus Nutritional Therapy • Type 1 DM – Diet based on usual food intake, balanced with insulin and exercise patterns • Type 2 DM – Emphasis placed on achieving glucose, lipid, and blood pressure goals – Calorie reduction
  • 52. Management of Diabetes Management of Diabetes What is a nutritive diet ?  Balanced in Nutrition distribution.  Balanced in Quantity/calories as per individual needs.  Balanced in Number of meals.  Balanced in Timing of meals. D iet D iet Copyright © Year 2005
  • 53. Management of Diabetes Management of Diabetes D iet D iet Nutritional requirement  CHO, protein, fat - calorie providing nutrients.  Vitamins, minerals and water - no calories.  Fiber - slows absorption gives satiety feeling, reduces cholesterol, eases bowel movements.
  • 54. Management of Diabetes Management of Diabetes D iet D iet – – F ood Pyr amid F ood Pyr amid Fats, Oils & Sweets USE SPARINGLY Vegetable Group. 3-5 SERVINGS Milk, Yogurt & Cheese Group 2-3 SERVINGS Meat, Poultry, Fish, Eggs & Nuts Group. 2-3 SERVINGS Fruit Group. 2-4 SERVINGS Bread, Cereal, Rice, Pasta Group. 6-11 SERVINGS Source: The Food Guide Pyramid, United States Department of Agriculture. Copyright © Year 2005
  • 55. Management of Diabetes Management of Diabetes D iet D iet – – Sour ce of N utr ition Sour ce of N utr ition Carbohydrates (CHO) Carbohydrates (CHO) They are the main source of energy Simple CHO Simple CHO Root vegetables, refined flour, sugar, jaggery, bakery products, pasta, sago etc. (X) (not preferred) Complex CHO Complex CHO Raw vegetables, whole grain cereals,dark green leafy vegetables, sprouts, whole pulses, fruits etc. () (preferred) Copyright © Year 2005
  • 56. Management of Diabetes Management of Diabetes D iet D iet – – Sour ce of N utr ition Sour ce of N utr ition Skimmed milk, Paneer, Curds, Chicken, Sprouted Legumes/Pulses, Soya beans/flour, Egg white, Fish () (preferred) They are the building blocks needed for growth and repairing tissues Red meat, Creamy milk, Nuts, Cheese (X) (not preferred) Proteins Proteins Copyright © Year 2005
  • 57. Management of Diabetes Management of Diabetes D iet D iet – – Sour ce of N utr ition Sour ce of N utr ition Saturated Monounsaturated Polyunsaturated Remains liquid in room temperature Remains solid in room temperature Fats Unsaturated Copyright © Year 2005
  • 58. Management of Diabetes Management of Diabetes D iet D iet – – Sour ce of N utr ition Sour ce of N utr ition Fiber  It increases the bulk of the diet.  It helps in decreasing plasma cholesterol, triglyceride levels, glucose levels.  It gives the feeling of satiety because of its water holding property. Sources - Covering of pulses and grains. - Vegetables (raw or half-cooked). - Whole fruits. Copyright © Year 2005
  • 59. Management of Diabetes Management of Diabetes D iet Planning D iet Planning Remember - When there is hypoglycemia  Check blood glucose level.  Consume simple carbohydrate.  Do not panic and overreact.  Review with the doctor or the educator. Copyright © Year 2005
  • 60. Diabetes Mellitus Nutritional Therapy • Alcohol • High in calories • Promotes hypertriglyceridemia • Can cause severe hypoglycemia b/c inhibits glucose production by liver
  • 61. M an agem en t of D iabet es Ex er cise Ex er cise Copyright © Year 2005
  • 62. Diabetes Mellitus Exercises • Exercise – Essential part of diabetes management – Increases insulin sensitivity – Lowers blood glucose levels – Decreases insulin resistance
  • 63. Diabetes Mellitus • Exercise – Take small carbohydrate snacks before 30 min during exercise to prevent hypoglycemia – Exercise after meals – Exercise plans should be individualized – Monitor blood glucose levels before, during, and after exercise
  • 64. Management of Diabetes Management of Diabetes Exer cise Exer cise – – Safety Tips Safety Tips  Always test blood sugar before and after exercise.  Have at least 15 grams of fast-acting carbohydrate to treat low blood sugar.  Always warm up first and cool down after exercise. Copyright © Year 2005
  • 65. Management of Diabetes Management of Diabetes Exer cise Exer cise – – Safety Tips Safety Tips  Wear shoes that fit properly and inspect your feet after activity for blisters or sores.  Drink lots of water, especially in hot weather. Copyright © Year 2005
  • 66. Management of Diabetes Management of Diabetes Exer cise Exer cise – – A Few A ler ts A Few A ler ts  In full or empty stomach.  When insulin action is at peak.  Under extreme temperatures.  During other illnesses.  If blood sugar over 250 and Ketones.  If chest pain occurs during exercise. Do not exercise
  • 67. M an agem en t of D i abet es M onitor ing M onitor ing Copyright © Year 2005
  • 68. Diabetes Mellitus Monitoring Blood Glucose • Self-monitoring of blood glucose (SMBG) – Allows self-management decisions regarding diet, exercise, and medication – Important for detecting episodic hyperglycemia and hypoglycemia – Patient education is crucial
  • 69. Extremely useful for outpatient monitoring specially for patients who need tight control for their glycemic state. A portable battery operated device that measures the color intensity produced from adding a drop of blood to a glucose oxidase paper strip. e.g. One Touch, Accu-Chek, DEX, Prestige and Precision.
  • 70. Diabetes Mellitus Nursing Management Nursing Diagnoses • Ineffective therapeutic regimen • Fatigue • Risk for infection • Powerlessness
  • 71. Diabetes Mellitus Nursing Management: Planning • Overall goals: – Active patient participation – No episodes of acute hyperglycemic emergencies or hypoglycemia – Maintain normal blood glucose levels – Prevent chronic complications – Lifestyle adjustment with minimal stress
  • 72. Diabetes Mellitus Nursing Management Nursing Implementation • Health Promotion – Identify those at risk – Routine screening for overweight adults over age 45 – Diabetes prevention (weight control)
  • 73. Diabetes Mellitus Nursing Management Nursing Implementation • Ambulatory and Home Care – Insulin therapy and oral agents – Personal hygiene – Medical identification and travel – Patient and family teaching
  • 74. Diabetes Mellitus Nursing Management • Stress Management – Emotional and physiological stress increase BG → hyperglycemia – Often need more insulin to maintain control (Type II diabetics normally controlled by OA may temporarily need insulin)
  • 75. Diabetes Mellitus Nursing Management • Stress Management – When ill • Continue regular diet and ↑ intake of non-caloric fluids • Take insulin/OA as prescribed and check BG Q4h • If BG > 13.3 mmol/L, check urine for ketones and report moderate to high ketone levels
  • 76. Com pli cat i on s of D i abet es Copyright © Year 2005
  • 77. Complications of Diabetes Complications of Diabetes Chronic Microvascular complications Macrovascular complications Acute Hyperglycemia Hypoglycemia Copyright © Year 2005
  • 78. Complications of Diabetes Complications of Diabetes A cute Complications A cute Complications Hyperglycemia Hypoglycemia Acute Copyright © Year 2005
  • 79. Complications of Diabetes Complications of Diabetes H yper glycemia H yper glycemia Watch for: Symptoms noticed within hours to several days  Increased Thirst & Urination.  High Blood Glucoselevels.  K etones in urine  Fatigue. Copyright © Year 2005
  • 80. Complications of Diabetes Complications of Diabetes H yper glycemia H yper glycemia - - Causes Causes Too much food Emotional Stress Not enough exercise Infection, fever, illness Not enough insulin Copyright © Year 2005
  • 81. Complications of Diabetes Complications of Diabetes H yper glycemia H yper glycemia What to do:  Call Doctor immediately.  Take fluids without sugar if able to swallow.  Test Blood sugar Frequently.  Test urine for K etones. Copyright © Year 2005
  • 82. Complications of Diabetes Complications of Diabetes High blood sugar levels can lead to:  Diabetic Keto Acidosis (DKA).  Hyperglycemic Hyperosmolar Non- ketotic Syndrome (HHNS). H yper glycemia H yper glycemia Copyright © Year 2005
  • 83. Complications of Diabetes Complications of Diabetes D iabetic K eto A cidosis (D K A D iabetic K eto A cidosis (D K A ) )  The blood glucose >250 mg/dl.  pH <7.3  Urine ketones moderately positive.  Serum ketones positive in 1:4 dilution.
  • 84. Complications of Diabetes Complications of Diabetes D iabetic K eto A cidosis D iabetic K eto A cidosis - - Causes Causes Too much food Emotional Stress Missed insulin or Tablets Infection, fever, illness Interfering Drugs Copyright © Year 2005
  • 85. Complications of Diabetes Complications of Diabetes D iabetic K eto A cidosis D iabetic K eto A cidosis – – Signs & Symptoms Signs & Symptoms Lethargy Changed mental status Pain in the abdomen Urination Thirst Fruity smell in the breath Copyright © Year 2005
  • 86. Complications of Diabetes Complications of Diabetes D iabetic K eto A cidosis (D K A ) D iabetic K eto A cidosis (D K A ) Management Goals  Restore & maintain normal glucose metabolism.  Correct fluid & electrolyte imbalance.  Prevent further complications.  Provide education and follow-up. Copyright © Year 2005
  • 87. Complications of Diabetes Complications of Diabetes D iabetic K eto A cidosis (D K A ) D iabetic K eto A cidosis (D K A ) "Avoid anymore DKA" "Avoid anymore DKA" Patient & family Education Copyright © Year 2005
  • 88. Diabetes Mellitus Acute Complication: HHNS • BG > 44.5 mmol/L • Occurs in Type II diabetics (often elderly) • Causes: similar to DKA • Pathophysiology – Similar to DKA, except there is enough insulin to prevent ketosis (fat breakdown), but not enough to prevent hyperglycemia – Extreme hyperglycemia causes intracellular dehydration d/t movement of water from cells
  • 89. Diabetes Mellitus Acute Complication: HHNS • Clincial manifestation dehydration, weakness, polyuria, polydipsia, somnolence, seizures, coma – Treatment • Re-hydrate • Insulin IV • Monitor closely
  • 90. Complications of Diabetes Complications of Diabetes H ypoglycemia  Encountered mostly by taking patients on Insulin and drugs that simulate insulin secretion.  Should be alert when blood sugar is < 70 mg/dl.  Severity, glucose level and signs & symptom may differ in different people. Copyright © Year 2005
  • 91. Complications of Diabetes Complications of Diabetes H ypoglycemia H ypoglycemia - - Symptoms Symptoms Watch for: Symptoms noticed within hours to several days  Cold sweats, faintness, dizziness.  Headache.  Pounding of heart or trembling.  Blurred vision  Hunger  Inability to awaken  Personality changes.  Fatigue. Copyright © Year 2005
  • 92. Complications of Diabetes Complications of Diabetes H ypoglycemia H ypoglycemia - - Causes Causes Excessive exercise Too much insulin Not enough food/ Delayed meals Copyright © Year 2005
  • 93. Complications of Diabetes Complications of Diabetes H ypoglycemia H ypoglycemia - - Tr eatment Tr eatment Treatment Self-treated with simple sugar, glucose tablets or sweetened fluids Copyright © Year 2005
  • 94. Complications of Diabetes Complications of Diabetes H ypoglycemia H ypoglycemia - - Tr eatment Tr eatment Treated with help of glucose tablets / sugar with additional food Treatment Copyright © Year 2005
  • 95. Complications of Diabetes Complications of Diabetes H ypoglycemia H ypoglycemia - - Tr eatment Tr eatment IV glucose or injection glucagon (s/c) Treatment
  • 96. Complications of Diabetes Complications of Diabetes H ypoglycemia H ypoglycemia - - Pr ecautions Pr ecautions  Learn about hypoglycemia.  Adhere to the timings and quantity of food and medicine  Carry simple carbohydrate containing snacks always.  Do not keep long gap between meals.  In case of longer sports activities, take breaks, drink lot of water and have snacks.  Keep injection glucagon ready  Educate family members & co-workers  Carry a medical identity card Copyright © Year 2005
  • 97. Complications of Diabetes Complications of Diabetes H ypoglycemia H ypoglycemia Remember - When there is hypoglycemia  Check blood glucose level  Consume simple carbohydrate.  Do not panic and over react.  Review with the doctor or the educator. Copyright © Year 2005
  • 98. Complications of Diabetes Complications of Diabetes Chr onic Complications Chr onic Complications Microvascular complications Macrovascular complications Chronic Copyright © Year 2005
  • 99. Complications of Diabetes Complications of Diabetes M icr ovascular Complications M icr ovascular Complications Diabetic Retinopathy Diabetic Nephropathy Diabetic Neuropathy Microvascular Complications Copyright © Year 2005
  • 100. Complications of Diabetes Complications of Diabetes D iabetic Retinopathy D iabetic Retinopathy  Diabetic retinopathy is a potentially blinding complication of diabetes that damages the eye's retina.  It occurs when diabetes damages the tiny blood vessels in the retina. At this point, most people do not notice any changes in their vision. Copyright © Year 2005
  • 101. Complications of Diabetes Complications of Diabetes D iabetic Retinopathy D iabetic Retinopathy  Macular edema: damaged blood vessels leak fluid and lipids onto the macula. The fluid makes the macula swell, blurring vision.  Proliferative stage: Fragile, new blood vessels grow along the retina and in the clear, gel-like vitreous that fills the inside of the eye. Without timely treatment, these new blood vessels bleed, cloud vision, and destroy the retina. Copyright © Year 2005
  • 102. Complications of Diabetes Complications of Diabetes D iabetic Retinopathy D iabetic Retinopathy - - D etection D etection Diabetic retinopathy is detected during an eye examination that includes:  Visual acuity test: How well one see various distances.  Pupil dilation: Widen the pupil to see more of the retina for signs of diabetic retinopathy.  Ophthalmoscopy: Examination of the retina using an ophthalmoscope.  Tonometry: A standard test that determines the fluid pressure inside the eye. Elevated pressure is a possible sign of glaucoma. Copyright © Year 2005
  • 103. Complications of Diabetes Complications of Diabetes D iabetic Retinopathy D iabetic Retinopathy - - Tr eatment Tr eatment There are two treatments for diabetic retinopathy:  Laser Surgery  Vitrectomy Copyright © Year 2005
  • 104. Complications of Diabetes Complications of Diabetes D iabetic Retinopathy D iabetic Retinopathy - - Tr eatment Tr eatment A vitrectomy is performed if you have a lot of blood in the vitreous. It involves removing the cloudy vitreous and replacing it with a salt solution. Because the vitreous is mostly water, you will notice no change between the salt solution and the normal vitreous. Copyright © Year 2005
  • 105. Complications of Diabetes Complications of Diabetes M icr ovascular Complications M icr ovascular Complications Diabetic Nephropathy  When blood sugar levels are high, sugar is passed into the urine.  When this happens, the pressures are higher in the kidney filtering system (the glomerulus) and changes in the small blood vessels of the kidney can occur.  This increased pressure causes damage to the filtering system so that some proteins start leaking through the filter and appear in the urine. Copyright © Year 2005
  • 106. Complications of Diabetes Complications of Diabetes D iabetic N eur opathy D iabetic N eur opathy  Diabetic neuropathy, or “damage to the nerves”, is a condition seen after puberty, usually in people who have had very high sugar levels for a long time.  Neuropathy may cause  Gastrointestinal problems, Urinary Tract Infection, too much of sweating, dryness of skin, severe pain on lower extremities, loss of sensation, heart problems and orthostatic hypotension.  Diabetic foot. Copyright © Year 2005
  • 107. Complications of Diabetes Complications of Diabetes Sensory Diabetic Neuropathy Autonomic Motor D iabetic N eur opathy D iabetic N eur opathy Copyright © Year 2005
  • 108. Complications of Diabetes Complications of Diabetes Sensor y N eur opathy Sensor y N eur opathy  Sensory Neuropathy affects one of the nerves that take information to brain about sensation.  Leads to pain, numbness, tingling in extremities. Copyright © Year 2005
  • 109. Complications of Diabetes Complications of Diabetes A utonomic N eur opathy A utonomic N eur opathy  Autonomic Neuropathy affects the nerves that control involuntary activities such as action of stomach, heart and blood pressure.  Leads to Diabetic Diarrhea, Impotence, bladder is unable to empty completely, orthostatic hypotension and the ability to exercise. Copyright © Year 2005
  • 110. Complications of Diabetes Complications of Diabetes M otor N eur opathy M otor N eur opathy  Motor Neuropathy affects the nerves that carry signals to muscles like walking, running.  Leads to muscle weakness.
  • 111. Complications of Diabetes Complications of Diabetes D iabetic N eur opathy D iabetic N eur opathy  Diagnosis  Weak Knee jerk/ ankle jerk.  Electromyogram  Nerve Conduction Studies Copyright © Year 2005
  • 112. Complications of Diabetes Complications of Diabetes D iabetic N eur opathy D iabetic N eur opathy  Treatment  No way to heal or replace damaged nerve cells.  Keep Blood Glucose levels as close to normal as possible.  Exercise  Painkillers/ Antidepressants. Copyright © Year 2005
  • 113. Complications of Diabetes Complications of Diabetes Per ipher al A r ter ial D isease Per ipher al A r ter ial D isease  Peripheral arterial disease (PAD) is a form of peripheral vascular disease that occurs when blood vessels in the legs are narrowed or blocked by atherosclerosis, decreasing blood flow to the feet and legs.  One in three people with diabetes over age 50 is estimated to have this condition.  If undetected, PAD can lead to amputations of the lower limbs and increase a person's risk of intermittent claudication. Copyright © Year 2005
  • 114. Complications of Diabetes Complications of Diabetes Severely infected foot Blood decompression Neuro-ischemic foot D iabetic F oot D iabetic F oot Copyright © Year 2005
  • 115. Complications of Diabetes Complications of Diabetes  Nerves damaged by the disease are not as sensitive to pain, heat or cold, so people with diabetes can injure their feet, not know it, and develop infections.  Poor circulation compounds the problem, by reducing the number of infection-fighting white blood cells that are carried to and from the wound site. If left untreated, a slow-to-heal and infected wound (ulcer) can, ultimately, lead to amputation. D iabetic F oot D iabetic F oot Copyright © Year 2005
  • 116. Complications of Diabetes Complications of Diabetes D iabetic F oot D iabetic F oot - - Symptoms Symptoms  Tingling, numbness, pain, or the loss of sensation in the feet.  Restricted blood flow to the legs and feet.  Foot deformities, including hammertoes.  Stiff joints. Copyright © Year 2005
  • 117. Complications of Diabetes Complications of Diabetes Foot Car e Foot Car e - - D Os D Os  Wash feet daily.  Inspect feet and toes, especially in between, daily.  Wear thick, soft socks.  Cut toenails straight across.  Be measured and fitted each time you buy a new pair of shoes.  Lose weight.  Exercise.
  • 118. Complications of Diabetes Complications of Diabetes F oot Car e F oot Car e – – D on’ts D on’ts  Never go barefoot.  Avoid high heels, sandals and shoes with pointed toes.  Don’t smoke and drink only in moderation.  Avoid soaking your feet. Copyright © Year 2005
  • 119. Complications of Diabetes Complications of Diabetes  Don’t wear anything that is too tight around the legs.  Never use heating pads or hot water bottles on cold feet.  Avoid over the counter medications for corns, calluses, or warts. F oot Car e F oot Car e – – D on’ts D on’ts Copyright © Year 2005