Calcium channel blockers are frequently used to
A)increase the heart rate.
B)treat tachycardia or other arrhythmias.
C)speed up conduction of impulses through the AV node.
D)slow the closing of potassium ion channels.
E)treat bradycardia and low blood pressure.

Question

Quizplus · Accepted Answer

Calcium channel blockers are used to treat tachycardia or other arrhythmias by reducing the influx of calcium ions into cardiac muscle, which slows down the heart rate and can prevent abnormal heart rhythms. They are not used to increase the heart rate or speed up conduction of impulses through the AV node. Additionally, they do not affect potassium ion channels and are not used to treat bradycardia or low blood pressure.

Calcium Channel Blockers Are Frequently Used to