verapamil Flashcards
1
Q
class
A
- Class IV antiarrhythmic
- Ca channel blocker
- antianginal
- antihypertensive
- vascular headache suppressant
2
Q
action
A
- depress depolarization and ↓ O2 demand of heart
- ↓ force of contraction
- ↓ HR
- slow rate of conduction through SA and AV nodes
3
Q
trade name
A
Calan
4
Q
routes
A
- PO
- IV
5
Q
use
A
- a-fib
- atrial flutter
- SVT
- HTN
- angina
6
Q
complications
A
- bradycardia
- hypotension
- HF
- constipation
- interventions
- monitor ECG, BP
- ↓ dose for Hx of HF
7
Q
Tx for severe hypotension caused by verapamil
A
- IV fluid therapy
- modified Trendelenburg
- IV calcium gluconate
8
Q
contraindications
A
- > 1st-degree AV block (unless working pacemaker present)
- atrial fib/flutter
- severe hypotension
- IV
- ventricular tachycardia
- beta blocker use
9
Q
precautions
A
- pregnancy (C)
- kidney dysfunction
- ↑ ICP
10
Q
interactions
A
- additive effects
- atenolol
- esmolol
- propranolol
- monitor ECG; ↓ dosages if needed
- potentiates effect of
- carbamazepine
- digoxin
- monitor med levels
- HF
- beta blockers
- monitor for HF; use caution
11
Q
verapamil + beta blocker =
A
- possible HF
- monitor for, use caution
12
Q
verapamil + atenolol, esmolol, or propranolol =
A
- additive effects of both
- monitor ECG
- ↓ dosages if needed
13
Q
verapamil + carbamazepine or digoxin =
A
- potentiated effects of carbamazepine or digoxin
- monitor med levels
14
Q
admin/pt ed
A
- orthostatic hypotension
- change positions slowly
- lie flat until dizziness subsides
- notify provider for peripheral edema, SOB
