CALCIUM CHANNEL BLOCKERS (EXAM 2) Flashcards
What are calcium channel blockers?
they block calcium channels in VSM
what do calcium channel blockers promote
Vasodilation
where are the channels
myocardium
vascular smooth muscle
what should you do before administering calcium channel blockers
check HR (apical)
heart rhythm
BP
what should you not do with the extended release medications
do not crush
what should the patient report when on calcium channel blocker
if they are experiencing bradycardia or hypotension
signs and symptoms of toxicity
very slow HR
Hypotension
dizziness
dyspnea
change in LOC
agitation
drowsiness
delirium
how do you treat toxicity
support ABC
adminster IV fluids for hypotension
administer antidote
what is the antidote for toxicity
calcium intravenously
calcium chloride
calcium gluconate
name a calcium channel blocker
Amlodipine
what is amlodipine
a calcium channel blocker
what does amlodipine does
treat hypertension and coronary heart disease
MOA of amlodipine
inhibit the influx of calcium across the myocardial and vascular smooth muscles cell membrane
results in decreased myocardial contractility
drug interactions
antihypertensive
NSAIDS
side effects of amlodipine
dizziness
drowsiness
anxiety
pheripheral edema
