Calcium Channel Blockers Are Useful in Treating Certain Cardiac Arrhythmias

question 5

Multiple Choice

Calcium channel blockers are useful in treating certain cardiac arrhythmias because they

• A) decrease the rate of discharge of the SA node
• B) increase conduction velocity through the AV node
• C) block the effects of catecholamines (epinephrine, norepinephrine) on cardiac tissues
• D) inhibit the ability of sodium to excite cardiac membranes
• E) none of the above are true; calcium channel blockers are not used to treat arrhythmias

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Definitions:

Substitution

The process of replacing one element with another, especially in mathematical equations or linguistic expressions.

Transitional Expression

Connective elements in writing that help to smoothly bridge thoughts and sections, enhancing readability.

Negative Habit

A persistently bad or detrimental practice or behavior that is often hard to give up and can have harmful effects on one's health, happiness, or well-being.

Same-sex Classrooms

Educational setups where students are grouped based on their gender, typically in an effort to tailor teaching methods and content.