Cardiac Flashcards
1
Q
Side effects of nitrates ?
A
Headache– most common
Orthostatic hypotension
Reflex tachycardia
2
Q
What is digoxins MOA ?
A
- ) MUSCLE: strengthens contraction and force of heart
- promotes Calcium absorption - ) ELECTRICAL: works on Na, K, ATPase
- ) STIMULATES VAGAL NERVE
3
Q
What is the major use for digoxin
A
CHF
4
Q
What do you need in order for digoxin to work?
A
Therapeutic levels of potassium and dig
5
Q
What are the therapeutic levels of potassium and digoxin
A
K: 3.5-5
Dig: 0.5-2
6
Q
Adverse reactions to dig?
A
GI: anorexic,n/v/d, abdom. Pain
CNS: fatigue, visual, insomnia
Most serious: dysrhythmias
7
Q
Why would a nurse hold dig ?
A
Pulse under 60
Dig/K levels under therapeutic range
8
Q
What is nitrates use and MOA
A
Use: Antianginal
MOA: acts directly on VSM causing vasodilation
—decreases venous return, preload, O2 demand, cardiac output, after load
