Beta Blockers (class II)

Question 1

Harmful effects of Beta blockers

Answer 1

Impair myocardial contractility

Question 2

Beneficial effects of Beta blockers

Answer 2

Reduce inappropriate discharges

Reduce episodes of sustained VT

Question 3

How do Beta blockers work?

Answer 3

Block the beta-adrenergic effects of SNS 
Affect every aspect of conduction system
Slow down automaticity and heart rate
Slow conduction velocity
Prolongs refractory periods