Beers Criteria- Geriatric Meds Flashcards
ACE-I and K
hyperkalemia
BB and AChE-I
Bradycardia
CCB/nitrate/alpha-blocker
hypotension
Diuretic and Diuretic
e-ltyle disturbance, dehydration, hypotenision
Benzo, sedative hypnotic, GI antispasmodics, muscle relaxants, 1st generation antihistamines
sedation, confusion, falls, cognitive impairment
Pharmacodynamics
“what drug does to the body”
benzo, opioids, warfarin, dig ,anticholinergic’s
- increases SENSITIVITY in changes in receptor/affinity- pharmacodynamic
BB and B- agonists
DECREASE sensitivity in changes in receptor/affinity- pharmacodynamic
Change in homeostatic Response
orthostatic BP- decreases barorectpor response
NA and water conserve
mobility and balance issues
Pharmacokinetics -Lipid Soluble drugs i.e. Diazepam
highly bound drugs i.e. phenytoin
stay in the body longer because there is increased body fat and decreased serum albumin
pharmacokinetics-
what body does to the drug
ADME
creatine clearance
volume of the body fluid from which the drug is removed per unit time
- lower muscle mass- low serum crt - Scr level round to 1.0 (not overestimatE)
GI
increase stomach pH, decrease GI blood flow, slowed gastric emptying, GI tranist
decrease drug absorption, decrease first pass metabolism, rate of absorption prolonged
i.e. ulceration with ASA, NSAIDS, iron/b12/ca with achlorhydria
Body Composition
decreased TBW, lean body mass, serum albumin, increase body fat
increases lipid soluble drugs and decrease water soluble
i.e. benzo like diazepam (lipid soluble high half life)
i.e. phenytoin (highly aluminum bound)
Liver
decreased liver mass, liver flow, CYP enzymes
first pass effect increase high t1/2
i.e. morhpine, propranolol- first pass