Drugs known as calcium channel blockers such as nifedipine can be used to
A) decrease the force of cardiac contraction.
B) increase blood pressure.
C) increase the rate of cardiac contraction.
D) none of the above
E) all of the above

Question

Quizplus · Accepted Answer

Calcium channel blockers such as nifedipine inhibit the influx of calcium ions into cardiac muscle cells, resulting in a decreased force of cardiac contraction. This can be useful in treating conditions such as hypertension and angina, which require a reduction in cardiac workload. Calcium channel blockers do not increase blood pressure or the rate of cardiac contraction.

Drugs Known as Calcium Channel Blockers Such as Nifedipine Can