Care of the Elderly Flashcards
define frailty
state of increased vulnerability resulting from ageing associated decline in reserve and function across multiple physiological systems such that ability to cope with everyday or acute stressors is compromised
key bits is they have a poor functional reserve, so they’re really vulnerable to decompensation when faced with illness, drug side-effects or metabolic disturbances
what are some common co-morbidities seen in the elderly?
linked - lung cancer, COPD, peripheral vascular disease (smoking causes all) unlinked: - diabetes - dementia - myeloma
PNEUMONIA - often seen on top of all of these!
what are the most common causes of geriatric admission?
falls confusion incontinence 'off legs' social admission chest pain, SOB, urinary symptoms
what are the 4 geriatric giants (Is)?
Instability (falls)
Immobility (off legs)
Intellectual impairment (confusion)
Incontinence
what are the 5 Ms of geriatrics?
Mind: - dementia - delirium - depression Mobility: - impaired gait and balance - falls Medications: - polypharmacy - deprescribing/optimal prescribing - adverse effects - medication burden Multi-complexity - mutli-morbidity - biopsychosocial situations Matters most - individual meaningful health outcomes and preferences
what is acopia?
term for “social admission” - negative connotations - DON’T use.
used to describe pts unable to cope with ADLs.
beware serious underlying pathologies that can easily be missed.
what is deconditioning?
occurs after a patient has been bedbound for days/weeks when admitted to hospital
they’re confused.
poor nutritional state (often present even prior to admission), made worse by acute illness.
can’t walk, falls, can’t look after themselves.
need a lot more than just meds!
what is involved in a comprehensive geriatric assessment?
it’s a multidimensional, multidisciplinary diagnostic process
determines frail older person’s medical, psychological and functional capacity.
tries to develop coordinated, integrated plan for treatment and long term follow up.
what are the four areas of a comprehensive geriatric assessment (CGA)? who might contribute to assessment of each category?
medical assessment - drs, nurse, pharmacist, dietician, SaLT
functional assessment - OT, PT, SaLT
psychological assessment - dr, nurse, OT, psychologist
social and environmental assessment - OT, social worker
what is included in the medical assessment as part of the CGA?
problem list
co-morbid conditions and disease severity
medication review
nutritional status
what is included in the functional assessment as part of the CGA?
ADLs
activity/exercise status
gait and balance
what is included in the psychological assessment as part of the CGA?
cognitive status testing
depression/mood screening
what is included in the social/environmental assessment as part of the CGA?
informal support needs and assets
eligibility/need for carers
home safety
what are the activities of daily living (ADLs)?
- mobility - ask about aids, appliances etc, stairs?
- washing and dressing
- continence
- eating and drinking
- shopping, cooking and cleaning
list some drugs that can cause confusion/affect memory when prescribed in older people
antipsychotics benzodiazepines antimuscarinics opioid analgesics some anticonvulsants
list some drugs that have a narrow therapeutic window when prescribed in older people
digoxin lithium warfarin phenytoin theophyllines
list some drugs with a long half-life when prescribed in older people
long-acting benzodiazepines (diazepam, nitrazepam)
fluoxetine
glibeclamid
list some drugs that can cause hypothermia when prescribed in older people
antipsychotics
TCAs
list some drugs that can cause Parkinsonism/movement disorders when prescribed in older people
metoclopramide
antipsychotics
stemetil
list some drugs that can cause bleeding when prescribed in older people
NSAIDs
warfarin
list some drugs that can predispose to falls when prescribed in older people
antipsychotics sedatives antihypertensives (esp. alpha blockers, nitrates, ACE inhibitors) diuretics antidepressants
what is polypharmacy?
when a patient is taking a large number of different prescription medications (some define this as 4+), often some which aren’t needed.
list some potential reasons for polypharmacy in older people
- multiple chronic disease processes requiring specific drug treatments
- multiple physicians involved in care (for different diseases)
- admission to residential/nursing home
- failure to review medication and repeat prescriptions
- failure to discontinue unnecessary medication
- failure of dr to recognise poor therapeutic response as non-compliance
- prescribing cascade - more and more drugs added on in attempt to treat what are actually side effects of the original drugs
list possible causes of falls in the elderly
- drugs e.g. sedatives, alcohol
- MSK e.g. OA of hip
- syncope e.g. vasovagal, cardiogenic, arrhythmias
- stroke/TIA
- postural hypotension - secondary to antiHTNs, hypovolaemia, dopaminergic drugs
- neurological - peripheral neuropathy, Parkinson’s
- hypoglycaemia
- visual impairment
- vertigo e.g. BPV, meiere’s disease
- poor environment (e.g. dim light, loose rugs)
- dementia
what are the three main features of Parkinson’s?
1) tremor
2) bradykinesia
3) rigidity - lead-pipe, cogwheel
list 3 differentiating features of a parkinsonian tremor
- slow, pill-rolling
- worse at rest
- asymmetrical
- reduced on distraction
- reduced on movement
what is the underlying pathophysiology of Parkinson’s?
loss of dopaminergic neurons in substantia nigra
what class of drug is normally combined with L-dopa to prevent peripheral side effects?
dopa decarboxylase inhibitor e.g. carbidopa or benserazide
list some potential complications of L-dopa therapy
- postural hypotension on starting treatment
- confusion, hallucinations
- L-dopa induced dyskinesias
- On-off effect - fluctuations in motor performance between normal function (on) and restricted mobility (off)
- shortening duration of action of each dose (i.e. end dose deterioration where dyskinesias become more prominent at the end of the duration of action)
how do immediately manage a TIA?
ABCDE assessment
aspirin 300mg daily started immediately (+PPI if needed)
specialist assessment within 24hrs of onset of symptoms - or within a week if the suspected TIA was more than a week ago
what are the components of secondary prevention post TIA?
lifestyle modification clopidogrel 75mg daily statins antihypertensives if necessary warfarin/NOAC if AF, mitral stenosis, dilated cardiomyopathy, recent big septal MI
list some risk factors for pressure ulcers
- age >70yrs
- being bedridden
- paralysis (complete or partial)
- obesity
- urinary or bowel incontinence
- poor nutrition
- medical conditions affecting blood supply e.g. diabetes, peripheral arterial disease, renal failure, heart failure
what is the name of the scoring system used to asses pressure ulcer risk?
Waterlow scoring system
how can pressure sores be prevented?
1) barrier creams
2) pressure redistribution and friction reduction - foam mattresses, heel support, cushions
3) repositioning - every 6hrs if normal risk, every 4hrs if high risk
4) regular skin assessment
what should you look for when assessing skin for risk of pressure sores?
- areas of pain/discomfort
- skin integrity at pressure areas
- colour changes
- variations in heart, firmness and moisture
how often should a patient at normal vs high risk be ‘turned’/repositioned to prevent pressure sores?
every 6 hrs in normal risk
every 4hrs in high risk
list cardiac conditions that could cause an embolic CVA
- AF
- MI causing mural thrombus
- infective endocarditis
- aortic/mitral valve disease
- patent foramen ovale
describe the bradykinesic features of Parkinson’s disease
- slow, shuffling steps
- reduced arm swinging
- difficulty in initiating movement
- mask-like face
what drugs used in Parkinon’s have been associated with pulmonary/retroperitoneal/cardiac fibrosis?
ergot-derived dopamine receptor agonists - bromocriptine, cabergoline
should do echo, ESR, creatinine and CXR before treatment and monitor closely
what possible side effects might you see in a patient on a dopamine receptor agonist?
e.g. bromocriptine, ropinirole, cabergoline, apomorphine
- impulse control disorders
- excessive daytime somnolence
- hallucinations in older people
- nasal congestion, postural hypotension
give some info on the use of levodopa for Parkinson’s
usually combined with decarboxylase inhibitor (e.g. carbidopa or benserazide) to prevent peripheral metabolism of levodopa to dopamine.
reduced effectiveness with time (2 yrs)
unwanted effects - dyskinesia (writhing movements), on-off effect, dry mouth, anorexia, palpitations, postural hypotension, psychosis, drowsiness
list some alternative drugs (i.e. not L dopa) for Parkinson’s treatment
- MAO-B inhibitors (inhibits dopamine breakdown)
- COMT Inhibitors (inhibits dopamine breakdown, adjunct to Levodopa)
- Antimuscarinics (help with tremor and rigidity)
- Amantidine (thought to increase dopamine relase and prevent reuptake at synapses)
give some RFs for a CVA
age HTN smoking hyperlipidaemia DM AF
what sort of features would you see in a cerebral hemisphere infarct?
- contralateral hemiplegia (flaccid then spastic)
- contralateral sensory loss
- homonymous hemianopia
- dysphasia
what sort of features would you see in a brainstem infarct?
more severe symptoms - quadriplegia, locked in syndrome
what sort of features would you see in a lacunar infarct?
small infarcts around basal ganglia, internal capsule, thalamus and pons
can result in pure motor, pure sensory, mixed sensorimotor signs or ataxia