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“ The ability to think and to reason is one of the distinguishing features of a human being”
COGNITION
Is the brain’s ability to process, retain and use information.
COGNITIVE ABILITIES
P erception
O rientation
R easoning
M emory
A ttention
COGNITIVE DISORDER
Delirium
Dementia
Amnestic disorder
Other cognitive disorder
DELIRIUM
“ acute confusional state”
Is a syndrome that involves a disturbance of consciousness accompanied by a change in cognition.
Develops over a short period , sometimes a matter of hours and fluctuates or changes during the course of the day.
DSM CRITERIA for DELIRIUM
Disturbances of consciousness (reduced clarity of awareness of the environment) with reduced ability to focus or sustain or shift attention.
Change in cognition (such as memory deficit, disorientation, language disturbance, perceptual disturbance)
Development over a short period of time (usually hours to days) and with a tendency to fluctuate during the course of the day.
KEY SYMPTOMS OF DELIRIUM
F EARFULNESS
D ISORIENTATION
A GITATION
ETIOLOGY:
UNKNOWN
General Medical condition
CHF, Pneumonia, Uremia, Malnutrition, dehydration, cancer, CVA and etc.
Substance
Prescription drug intoxication like anticholinergic drugs combination (elavil, antihistamines, antispasmodics, analgesics, steroids, sedatives, cardiovascular drugs (digoxin and diuretics) and cimetidine.)
MANAGEMENT:
Treatment of underlying disease and judicious use of medications and manipulation of the environment.
Altered LOC – Initial sign , fluctuates through out the day.
Oriented to person but disoriented to time and place
Impaired recent memory
Alteration in Perception
Insight and Judgment
Mild
Aware
Severe
No insight to the situation
Physiologic and Self care
Disturbed Sleep – Wake cycle
Diagnosis
Primary
Risk for Injury
Acute confusion
Additional
Disturbed Sensory Perception
Disturbed Thought Process
Disturbed Sleeping Pattern
INTERVENTION
Promoting Clients Safety
Meds should be used judiciously
Teach the client to ask assistance if not close supervision
Managing Confusion
Give realistic Reassurance
“ I know things are upsetting and confusing to you right now, but your confusion should clear as you get better.”
Speak in short. Simple, clear, low voice
Orienting cues
Touch
Reduce Environmental Stimuli
Well lighted room
Promoting Sleep and Proper Nutrition
Evaluation
Returns to their previous level of functioning
Understands that health care practices are necessary to avoid recurrence
DEMENTIA
Is a complex and devastating problem that is a major cause of disability in the older adult population.
It is not a normal aging process
Is characterized by the development of multiple cognitive deficits and usually accompanied by mood disturbances.
Course is GRADUAL in onset with an unabated cognitive decline.
The symptoms of dementia remain even delirium has cleared.
DSM CRITERIA for DEMENTIA
Multiple Cognitive deficits:
Memory impairment (amnesia)
At least one of the following cognitive disturbances:
Aphasia
Apraxia
Agnosia
Disturbance In executive functioning (PLOC)
Significant impairment in social or occupational functioning.
Amnesia
Early sign
Initially RECENT memory and in later stages it affects REMOTE memory
Aphasia
Deterioration of language function.
Begins with the inability to name familiar objects or people then progress to speech that becomes vague or empty with excessive use of “ It ” and “ Thing ”
Echolalia and Palilalia
Apraxia
Impaired ability to execute motor functions despite intact motor abilities.
Inability to perform routine self care activities
Agnosia
Inability to recognize or name objects despite intact sensory abilities.
They may look at the table and chairs but unable to name them.
ONSET & CLINICAL COURSE
MILD
Forgetfulness – hallmark sign
Difficulty finding words
Frequently loses objects – anxiety
Occupational and Social settings are less enjoyable
Most people remain in the community
MODERATE
Confusion is apparent with progressive memory loss
No longer perform complex task but remains oriented to PPT
End stage
Loses the ability to live independently
Remains in the community but with caregiver
SEVERE
Personality and Emotional changes occur
Delusional, wander at night, forget the names of his or her spouse and children.
Requires assistance in ADL
Lives in Nursing Facility
ETIOLOGY:
Vascular injury
Degenerative disease
Neoplastic
Demyelinating disease
Infectious
Inflammatory
Toxic
Metabolic
APPLICATION OF THE NURSING PROCESS
Assessment
Folstein Mini Mental State examination (MMSE)
Administered in 5 to 10 minutes
Consists of variety of questions that cover the memory, orientation, attention, constructional abilities.
Interviews of family, friends or caregivers
Mood and Affect
Anxiety and Fear at first
Labile mood
Catastrophic emotional reactions in response to environmental changes
Verbal or physical aggression
Wandering at night
Agitation
Withdrawn
Thought Process and Content
Ability to think abstractly is impaired
As dementia progresses
Delusion of Persecution is common
The client may accuse others of stealing objects he or she has lost
May believe that she is being cheated or pursued
Sensorium and Intellectual Process
Recent – Remote
Confabulation
Visual Hallucination
Physiologic and Self Care
Disturbed sleep – wake cycle
Nap during the day and wanders at night
Some clients ignore internal cues like hunger or thirst or difficulty eating and drinking (severe)
Neglect bathing and grooming
Diagnosis
Risk for Injury
Risk for Deficient Fluid Volume
Risk for Imbalanced Nutrition
Chronic Confusion
Impaired Environmental Interpretation Syndrome
Impaired Memory
Impaired Social Interaction
Impaired Verbal Communication
Ineffective Role Performance
Intervention
Focus on demonstrating caring, keeping clients involved by relating to the environment
Promoting Client’s Safety
Protecting against injury
Meeting physiologic needs
Managing the risk posed by the environment including internal stimuli such as Delusion and Hallucination
Promoting Adequate Sleep and Proper nutrition, hygiene and activity
Provide foods that clients like
Sitting with the client
Nutritious snacks
Minimizing noise
Foods should be cut
Finger foods
Tube Feedings
Monitor bowel elimination
Urinary Pattern
Balance between rest and activity
Structured Environment and Routine
Client’s preference
Emotional Support
Empathic caring
Supportive Touch
Promoting Interaction and Involvement
Reminiscence Therapy
Thinking about or relating personally significant past experiences
Photo albums
Distraction
Time away (5 – 10 mins.)
Going Along
Providing emotional reassurance
DELIRIUM DEMENTIA Onset Acute, often at night Insidious Course Fluctuating , with lucid intervals, during day: worse at night Stable over course of the day Duration Hours to week Months to years
Awareness Reduced Clear Alertness Abnormally LOW or HIGH Usually Normal Attention Lacks direction and selectivity; distractibility; fluctuates over course of the day Relatively unaffected Orientation Usually impaired for time; tendency to mistake unfamiliar to familiar place and persons Often impaired
Memory Immediate and recent memory impairments Recent and remote memory impairments – the most prominent symptom Thinking Disorganized Impoverished Perception Illusions and Hallucinations (usually visual) Often absent Sometimes: Hallucinations Delusions Illusions
Speech Incoherent, hesitant, slow or rapid Difficulty finding words Sleep wake cycle Always disrupted Fragmented sleep Physical Illness or Drug toxicity Either or both present Often absent, especially in Alzheimer’s type
Reversible Dementia
SLE (encephalopathy)
Syphilis
Alcohol abuse
Hypo and Hyperthyroidism
B12 and folate deficiency
Non Reversible Dementia
Alzheimer’s Disease
Parkinson’s disease
Pick’s disease
Creutzfeldt Jakob Disease
Vascular or multiinfarct dementia
Alcoholic Dementia
TIA
ALZHEIMER’S DISEASE
Commonly seen in the elderly ( 65 years old)
Most prevalent of all non reversible dementia (50 – 75%)
Age related progressive disorder of the CNS
Alois Alzheimer , post mortem revealed brain atrophy and distortions in the cortical neurofibrils = ALZHEIMER’S TANGLE or Neurofibrillary tangles
4A’s
mnesia
gnosia praxia
phasia
A
ETIOLOGY:
UNKNOWN
Presence of senile plaques and NFT
Dystrophic neuritis; thickened swollen neuronal process
Abnormal amyloid deposits within the senile plaques and around the blood vessels
Genetics
Toxins
Aluminum
Infection
Slow growing virus
Cholinergic deficit
Loss of cholinergic neurons in the brain(nucleus basalis of meynert)
Reduction in Acetylcholine
Impairment In ADL based on stages of AD
Mild
Difficulty with
Balancing checkbook
Preparing complex meal
Managing medication schedule
Moderate
Difficulty with
Simple food preparation
Household clean up
Yardwork
Some aspects of self care
Severe
Needs considerable assistance with
Personal care
Feeding
Grooming
Toileting
Profound
Oblivious to surrounding and totally dependent to the caregiver
Terminal
Bed bound, requiring constant care
TREATMENT
Donezepil (Aricept) od
Tacrine (Cognex) qid
Rivastigmine
Galantamine
Ginkgo Biloba
NSAID’s
Vitamin E
Estrogen
Calcium Channel Blockers prevents influx
PARKINSON’S DISEASE
A hypokinetic disorder , is a progressive, chronic, degenerative disease involving an area in the brain called the EPS
ETIOLOGY: deficiency of the DOPAMINE and a subsequent decrease in the DOPAMINE transmission to the basal ganglia.
S/Sx: BTR
DIFFUSE LEWY BODY DISEASE
Similar to AD but typically occurs in earlier life and is associated more often with Hallucination and Extra Pyramidal Symptoms
Evolves rapidly
Pathological feature: Presence of multiple Lewy bodies (eosinophilic cytoplasmic inclusions) in cortical and subcortical neurons.
HUNTINGTON’S DISEASE (huntington’s Chorea)
Involves both motor and cognitive disorder
Kinetic opposite of PD
Characterized by uncontrollable quick, jerky and purposeless writhing movements.
Disturbance in gait and slurred speech are noted in the beginning and progress into neurological and intellectual deterioration.
Memory loss, paranoia, irritability, impaired impulse control and lack of tongue and breathing control.
Usually begins between the ages 25 to 45 average duration of 15 to 20 years
Hereditary
Symptomatic approach
PICKS’S DISEASE
Clinical presentation is similar to AD and are usually treated in the same way.
Associated with aging and is without race and gender basis
Onset is slow with an average duration of 5 to 7 years.
Characterized by shrinkage of the frontal lobe.
CREUTZFELDT – JAKOB DISEASE
Also known as “Prion disease”
Is a non inflammatory dementia that accounts for fewer than 1% of all cases of dementia.
Prion is an infectious particle, smaller than a virus.
It is rapidly progressive disorder of the CNS involving severe neurological impairment with marked dysfunction.
Affects the cerebral cortex
Early symptoms are vision and hearing loss, impaired cognition, myoclonus, ataxia, muscle wasting, tremor, hallucinations and illusions.
VASCULAR OR MULTI INFARCT DEMENTIA
Multiple large and small cerebral infarcts.
CV disease maybe the leading cause of acquired intellectual impairment in the age 85 and older population.
ALCOHOLIC DEMENTIA
Typically occurs 15 to 20 years of continues drinking.
Alcoholic dementia has three primary symptoms:
Alcohol is directly toxic to the neurons
Alcoholism causes destructive nutritional deficit
Alcoholism causes end organ failure which in turn affects the CNS.
TRANSIENT ISCHEMIC ATTACKS
The chief importance of TIA is a precursor of a major stroke, MI or death.
The syndrome is caused by microembolism to the brain from atherosclerotic plaques in the aortocranial arteries in about 90% of TIA. 10 % for mural thrombi, valvular disease of the heart, vegetation of the heart valve, polycythemia, or some other blood clotting disorder.
PSYCHOTHERAPEUTIC MANAGEMENT
TNPR
Delirium HIGHEST PRIORITY : interventions to maintain life
Dementia HIGHEST PRIORITY : Providing Nursing Care to maintain optimal level of functioning
Must learn the background and lifestyle of the patient.
One on One basis by using the title and last name.
Use praise, touch and affection whenever possible.
Should be dressed in his or her own clothing during the day with his or her hair combed. Make up, shaved.
Safety
PSYCHOPHARMACOLOGY
Antipsychotics
Antidepressants
Antianxiety
MILIEU
They should be in the safe environment free from injury, stress and anxiety.
Warm caring atmosphere
Routine the patient can follow daily
Close supervision during bathing, eating and other activities.
All sharps or hazardous materials should be removed,
The doors should be monitored to prevent escape.
3 milieu related issues
STRESS – cause of anxious behavior
The work of HALL “Progressively Lowered Stress Threshold” (PLST)
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