INTRODUCTION
Cancer is a general term used to refer to a condition where the body’s cells begin to grow and reproduce in an uncontrollable way. Lung cancers are the fourth most common cancer reported in the Indian males.
DEFINITION
Lung carcinoma is a malignant lung tumor characterized by uncontrolled cell growth in tissues of the lung. If left untreated, this growth can spread beyond the lung by the process of metastasis into nearby tissue or other parts of the body.
CAUSES
The most common causes of fracture include,
I. Tobacco smoke
Tobacco use is responsible for more than one of every six deaths. The younger a person is when he or she starts smoking, the greater the risk of developing lung cancer.
II. Secondhand smoke
Passive smoking has been identified as a possible cause of lung cancer in nonsmokers. People who are involuntarily exposed to tobacco smoke in a closed environment (house, automobile, and building) have an increased risk of lung cancer when compared with unexposed nonsmokers.
III. Environmental and occupational exposure
Various carcinogens have been identified in the atmosphere, including motor vehicle emissions and pollutants fromrefineries and manufacturing plants. High levels of radon have been associated with the development of lung cancer, especially when combined with cigarette smoking. Chronic exposure to industrial carcinogens, such as arsenic, asbestos, mustard gas, chromates, coke oven fumes, nickel, oil, and radiation has been associated with the development of lung cancer.
IV. Genetics
Some familial predisposition to lung cancer seems apparent, because the incidence of lung cancer in close relatives of patients with lung cancer appears to be two to three times that in the general population regardless of smoking status.
TYPES OF LUNG CANCER:
1. Small cell lung carcinoma
• Accounts for 15%-25% of lung cancers
• It is most malignant form
• Tends to spread early via lymphatic and bloodstream
• Is frequently associated with endocrine disturbances
• Predominantly central and can cause bronchial obstruction and pneumonia.
2. Non-small cell lung carcinoma
Is further classified by cell type,
Adenocarcinoma
• Most common type
• Accounts for approximately 30%-40% of lung cancers
• More common in women
• Often gas no clinical manifestations until widespread metastasis is present
• Usually begins in mucous glandular tissue, is most commonly located in peripheral portions of lungs.
Squamous cell carcinoma
• Second most common type of lung cancer
• Accounts for 30%-35% of lung cancers
• Is more common in men
• Arises from the bronchial epithelium of the lungs or bronchus, slow-growing cancer that usually begins in the bronchial tubes.
Large cell carcinoma
• The least common form
• Accounts for 5%-15% of lung cancers
• Composed of large sized cells that are anaplastic and often arise in the bronchi, commonly causes cavitation
• Is highly metastatic via lymphatic and blood.
STAGING OF NON-SMALL CELL LUNG C
3. DEFINITION
Chronic renal failure involves progressive,
irreversible destruction of the nephrons in
both kidneys. The disease process progresses
until most nephrons are destroyed and
replaced by nonfunctional scar tissue.
11. STAGE-1: REDUCED RENAL RESERVE
Characterized by a 40%-75% loss of nephron
function. The patient is usually
asymptomatic because the remaining
nephrons are able to carry out normal
function of kidneys.
12. STAGE-2: RENAL INSUFFICIENCY
Occurs when 75%-90% of nephron function
is lost. At this point, the serum creatinine
and BUN rise, the kidney losses its ability to
concentrate urine and anemia develops. The
patient may report polyuria & nocturia.
13. STAGE-3: REND STAGE RENAL
DISEASE
The final stage occurs when there is less than
10% of nephron function remaining. All normal
regulatory, excretory and hormonal functions of
the kidneys are severely impaired. ESRD is
evidence by elevated creatinine & BUN levels as
well as electrolyte imbalance. Dialysis is usually
indicated at this point.
24. Test for renal function
O blood creatinine
O BUN test
O FBS
O Blood tests measures levels of waste products &
electrolytes.
O blood test for parathyroid hormone (PTH)
O Urinalysis & a urine test
25. Tests for anemia
O CBC
O A reticulocyte count
O Iron studies
O A serum ferritin test
26. ultrasound of the kidney
duplex Doppler study or angiogram of the
kidney
kidney biopsy
28. PHARMACOLOGICAL THERAPY
Calcium & phosphorus Binders
Hyperphosphatemia and hypokalemia are tested with medications
that bind dietary phosphorus in the GI tract. Binders such as calcium
carbonate (caltrate) or calcium acetate (calphron) are prescribed.
Antihypertensive & cardiovascular agents
Acute failure & pulmonary edema may also require treatment with
fluid restriction, low sodium diets, diuretic agents such as digoxin
(lanoxin) or dobutamine (Dobutrex) and dialysis.
29. CONT…
Antiseizure agents
IV diazepam (valium) or phenytoin (Dilantin) is usually administered to
control seizures.
Diuretics
Furosemide (Lasix) only given with severe fluid overload.
Erythropoietin
Erythropoietin is administered intravenously or subcutaneously three
times a week in ESRD. It may take 2 to 6 weeks for the hematocrit to
increase, therefore, the medication is not indicated for patients who
need immediate correction of severe anemia.
Iron supplement
Supplementary iron include iron sucrose (venofer) and ferric gluconate
(ferrlecit).
30. NUTRITIONAL THERAPY
• careful regulation of protein intake, fluid intake to balance fluid
losses, sodium intake to balance sodium losses & some restriction of
potassium.
• adequate caloric intake and vitamin supplementation
• The allowed protein must be of high biologic value (diary products,
eggs, meats).
• Fluid restrictions, fluid allowance is usually 500-600 ml more that
the previous dialysis 24 hr. output.
• Calories are supplied by carbs & fats to prevent wasting &
malnutrition.
31. DIALYSIS
Dialysis is a type of renal replacement therapy
which used to provide artificial replacement
therapy for lost kidney function due to acute or
chronic kidney failure.
Dialysis has to duplicate both of these functions-
dialysis- waste removal, ultrafiltration fluid removal.
There are 2 main types of dialysis
1. Hemodialysis
2. Peritoneal dialysis
32. Hemodialysis
The dialysis process is very efficient (much higher than in the
natural kidneys), which allows treatments to take place
intermittently (usually 3 times a week), but fairly large volumes
of fluid must be removed in a single treatment.
Peritoneal dialysis
Works by using the body’s peritoneal membrane, which is
inside the abdomen, as a semipermeable membrane. Dialysis
fluid is instilled via a peritoneal dialysis catheter, which is
placed in the patient’s abdomen, running from the peritoneum
out to the surface, near the naval.
34. ASSESSMENT
Assess fluid status
Assess nutritional dietary patterns
Assess nutritional status
Assess understanding of cause of renal failure. Its
consequences & its treatment.
Assess patients & family’s responses and reaction
to illness & treatment.
Assess for signs of hyperkalemia
35. NURSING DIAGNOSIS-1
Excess fluid volume related to decreases urine output,
dietary excesses and retention of sodium & water as
evidence by intake output chart.
36. Intervention
Assess fluid status and identify potential sources of
imbalance.
Limit fluid intake to prescribed volume.
Assist patient to cope with the discomforts resulting
from fluid restriction.
Provide or encourage frequent oral hygiene.
37. NURSING DIAGNOSIS- 2
Imbalanced nutrition less than body requirements related
to anorexia, nausea, vomiting, dietary restrictions and
altered oral mucous membranes as evidence by
malnutrition.
38. Intervention
Assess nutritional status like weight changes &
laboratory values.
Assess patient’s nutritional dietary patterns, diet
history, food preferences.
Provide patent’s food preferences within dietary
restrictions.
Promote intake of high biologic value protein foods,
eggs, dairy products, meats.
39. NURSING DIAGNOSIS- 3
Activity intolerance related to fatigue, anemia, retention of
waste products and dialysis procedure as evidence by lac
of personal hygiene.
40. Intervention
Assess factors contributing to activity intolerance.
Promote independence in self care activities as
tolerated, assist if fatigued.
Encourage alternating activity with rest.
Encourage patient to rest after dialysis treatments.
42. Intervention
Assess understanding of cause of renal failure
consequences of renal failure & its treatment.
Provide information at patient’s level of understanding
and guided by patient’s readiness to learn.
Provide oral and written information about the treatment
plan.