Antiarrhythmics - Class II Flashcards
1
Q
Antiarrhythmics - Class II
Drug Names
A
“-olols”
Acebutolol
Pronanolol*
Esmolol
2
Q
Antiarrhythmics - Class II
Actions
A
Block beta receptors leading to:
- Decreased HR, cardiac excitability, cardiac output, and slows AV node
effects phase 4
3
Q
What phase does class II effect?
A
phase 4
4
Q
Antiarrhythmics - Class II
Indications
A
SVT (>150 bpm)
PVCs
5
Q
Antiarrhythmics - Class II
Contraindications and Cautions
A
CI: sinus bradycardia, AV block, heart block, CHF, asthma, respiratory depression, P & L
Cautions: DM, thyroid dysfunction, renal/liver dysfunction
6
Q
Antiarrhythmics - Class II
Adverse Effects
A
Related to SNS
- CNS: dizzy, insomnia, dreams, fatigue
- CV- hypotension, bradycardia, AV block, arrhythmias
- Resp: bronchospasm, dyspnea
- GI: N/V, anorexia
- Loss of libido
- Decreased exercise tolerance
7
Q
Antiarrhythmics - Class II
Drug-Drug Interactions
A
Verapamil
Insulin
