Question

When the heartbeat is slower than the normal rate of the heart (less than 60), this type of arrhythmias called

• A. \( \text{Bradycardia} \)
• B. \( \text{Tachycardia} \)
• C. \( \text{Arterial contraction} \)
• D. \( \text{Ventricular contraction} \)

Hint:

Remember: "brady-" means slow, "tachy-" means fast. Normal adult resting heart rate: 60–100 bpm. Below 60 bpm is bradycardia; above 100 bpm is tachycardia.

Answer 1

The Correct Option is A

The normal resting heart rate for adults ranges from about 60 to 100 beats per minute (bpm).
When the heartbeat is slower than this normal range (less than 60 bpm), the condition is called bradycardia.
- (A) Bradycardia: The prefix "brady-" means slow, and "-cardia" means heart, so it literally means slow heart rate.
- (B) Tachycardia: "Tachy-" means fast, so tachycardia refers to a fast heart rate (greater than 100 bpm).
- (C) Arterial contraction: Refers to contraction of the atria, part of normal cardiac function, not related to heart rate classification.
- (D) Ventricular contraction: Refers to contraction of the ventricles, also part of normal function, not describing heart rate.
Thus, the correct answer is Bradycardia for a heart rate slower than 60 bpm.