Dementia, Delirium, Depression + Neuro Flashcards
dementia DSM 5 diagnostic criteria
decline in memory PLUS one of the following:
- unable to generate coherent speech and understand language
- unable to recognize/identify objects
- unable to execute motor activities
- unable to think abstractly, make sound judgements, plan/carry out tasks
tools to assess cognitive function (2)
- mini mental state exam (MMSE)
- mini-cog
behavioral symptoms in dementia (6)
- psychomotor agitation
- psychosis
- aggression
- apathy
- depression
- sleep
(PPAADS)
medications for dementia/Alzheimer’s (5)
- acetylcholinesterase inhibitors
- Memantine (NMDA receptor antagonist)
- haloperidol for psychotic symptoms
- atypical antipsychotics
- benzodiazepines for agitation/agression
5 A’s of Alzheimer’s
- anomia - inability to remember names of things
- apraxia - misuse of objects
- agnosia - inability to interpret sensations
- amnesia - memory loss
- aphasia - inability to comprehend/formulate language
stages of Alzheimer’s
- early: mild cognitive decline, noticeable deficits in demanding job situations
- mild: deficit associated with complicated tasks, withdrawal, apathy, forgetfulness
- moderate: insomnia, wandering, speech difficulty, difficulty with IADLs
- moderately severe: deficits in ADLs, total dependence
- severe: no verbal or self abilities
tool for assessing delirium
Confusion Assessment Method (CAM)
CAM criteria
- acute onset, fluctuating course
- inattention
- disorganized thinking
- altered LOC
diagnosis requires 1 & 2, and either 3 or 4
meds than can cause delirium
anticholinergics, psychoactive drugs
depression screening tools (2)
- geriatric depression scale
- patient health questionnaire-2 (PHQ-2)
geriatric depression scale
- 15 yes/no questions
- highest score: 15 - most severe
medications for depression (3)
SSRIs, SNRIs, TCA-related medications
non-pharmacologic treatment for depression
- group and individual therapy - cognitive behavioral therapies (CBT)
- electroconvulsive therapy (ECT)
three components of ICP
- brain volume
- cerebral blood volume
- cerebrospinal fluid
Monro-Kellie Doctrine
change in volume of any one component of ICP must be accompanied by a reciprocal change in one or both of the other components to maintain appropriate ICP
early indicators of increased ICP (5)
- change in LOC
- papilledema (optic disk swelling)
- slurring of speech
- delay in response
- vomiting
late indicators of increased ICP (4)
- further decrease in LOC
- cushing’s triad
- pupil changes
- posturing
treatment/interventions for increased ICP
- IV therapy and vasoactive agents
- temp control
- body positioning - HOB 30°, no hip flexion > 90°, log roll
- maintain ventilation - pO2 > 60 mmHg
meds for increased ICP (3)
- osmotic diuretics - mannitol
- sedatives/paralytics (opioid narcotics, benzos, sedative-hypnotics, paralytics)
- barbiturates
two components of LOC
arousal/alertness and content/awareness
explain the Glasgow Coma Scale (GCS)
- assessment tool for arousal/alertness
- three components: eye opening, best verbal, best motor
- scores: 3-15 - 15 is best, < 7/8 requires further assessment
decorticate posturing
abnormal flexion; indicates cerebral hemisphere dysfunction
decerebrate posturing
abnormal extension; indicates brainstem dysfunction (worse)
explain the cold caloric test
- tests the oculovestibular reflex, brainstem function
- nystagmus toward stimulus = normal
explain doll’s eye movements
- tests the oculocephalic reflex
- full doll’s eyes - eyes move opposite side of where the head is turned = normal
- eyes remain fixed in mid-position as head is turned = brainstem injury
Cushing’s triad
- increased systolic BP with widened pulse pressure
- bradycardia
- altered respirations (usually slowed)