Geriatrics Flashcards
(41 cards)
Define opportunities for pharmacists in the care of older adults in various settings.
inpatient medical/surgical unit (wards) - consultant based
retail pharmacy - vaccines, medication regimen review
ambulatory care pharmacy - anti-coagulation management, cardiovascular risk reduction, medication review management; retail pharmacy roles stems from this
long term care
What are the key roles of the pharmacist when caring for older adult patients in LTC?
support providers to answer questions about meds
consult on medication regimens, recommned initiation or adjustments of medications based on clinical data
serve as a provider with prescriptive authority
Pharmacy services in LTC
supply, distribute, secure medications for short-stay (rehab), assisted living, and long-stay/permanent residents
Consultant pharmacy services
review medication administration, patient charts, medication storage at monthly or 3-month intervals
Sample communication
often multiple copies (chart, provider, pharmacist records)
identify, explain drug therapy problem
recommend action
physician/provider response
Identify medications that may result in more adverse events than benefits in older adults.
sedative/hypnotics
neuroleptics/antipsychotics
antidepressants
opioids
loop diuretics
alpha-blockers
medications with anticholinergic properties - focuse on risk of cognitive impairment
sedatives, medications with CNS effects (falls, dizziness)
diabetic agents: sliding scale insulin, long-acting sulfonlyureas
medications that may exacerbate chronic conditions (heart failure)
Medication problems in the older adult
age-related increase in chronic conditions = higher medication use
polypharmacy
nonadherence
altered pharmacokinetics
Polypharmacy
medications without indication
medications treating ADR
60% understand medications well, leaving 40% that need our attention
Nonadherence
over 200 barriers to adherence
aging NOT one
Beers criteria
criteria for potentially inappropriate medication use in older adults (age 65 yrs and older)
evaluates risks of medications against benefits with specific considerations for older people
Identify safer alternative medications for older adults.
Beers criteria alternatives:
anticholinergies: several, indication specific
sedatives: non-pharmacologic, other treatments for anxiety
sulfonylureas: shorter acting agents, relaxed treatment targets
Goals of care for older adults
maintain independence (daily activities, finances, transportation)
avoid need for institutionalization
maintain QOL
maintain functional ability
Functional abilities in older adults
activities of daily living (ADLs): dressing, bathing, transferring, feeding, toileting, walking/ambulation
instrumental activities of daily living (IADLs): handling finances, shopping for groceries, meal prep, using a phone, housekeeping/laundry, handling medications, using transportation
Risk factors for functional decline
age
immobility/exercise intolerance
poor muscle strength
poor balance
malnutrition, weight loss
hospitalizations
morbidity from chronic disease
cognitive impairment
depression
Physiologic changes associated with aging
decreased total body water
decreased lean body mass
increased body fat
decreased baroreceptor response/activity
reduced heart rate variability
decreased hepatic blood flow
decreased renal blood flow
decreased neurotransmitter volume (sensitivity to CNS adverse effects)
Pharmacokinetic changes with aging
generally no change in bioavailability of most drugs (but slower Tmax)
Water soluble drugs
ex. atenolol
decrease Vd and increase concentration of water-soluble drugs
Lipid-soluble drugs
ex. rifampin
increase Vd and increase T1/2 of lipid-soluble drugs
Hepatically-cleared drugs
ex. propranolol
decrease clearance and increase T1/2 of most hepatically-cleared drugs
Renally-cleared drugs
ex. atenolol
decrease clearance and increase T1/2 of most renally-cleared drugs
Rate of change is
unique to each person
Describe the roll of palliativce care and advance care directives supporting end of life care in older adults.
palliative care: after diagnosis of terminal illness, disease not responsive to curative treatment or treatment doesn’t exist
hospice care: provided at home, in LTC, or independent facility
Palliative care treatment
medical, psychological, social, spiritual care for patient and family
optimize QOL, focus on symptoms only, not life-prolonging
stop meds not improving QOL
Hospice care treatment
life expectancy of 6 months or less, certified by MD
home or institution-based, interdisciplinary
diagnostic tests, hospitalizations, labs no longer covered