Termination is ______ out of ______ slow beats.

Termination is ______ out of ______ slow beats.

• A. 12/16
• B. 10/16
• C. 12/18
• D. 14/16

Answer: (A)

The main idea is expressing how often the arrhythmia terminates given a series of slow-beat cycles. Saying termination is 12 out of 16 slow beats means that in 12 of those 16 slow-beat events the rhythm stops. That simplifies to 3/4, or 75%. So this option shows that, for each slow-beat cycle, there is a 75% chance the termination mechanism succeeds. The other fractions correspond to different success rates (for example, 10/16 would be 62.5%, 12/18 about 66.7%, and 14/16 about 87.5%), but 12/16 matches the described termination rate of 75%.

The main idea is expressing how often the arrhythmia terminates given a series of slow-beat cycles. Saying termination is 12 out of 16 slow beats means that in 12 of those 16 slow-beat events the rhythm stops. That simplifies to 3/4, or 75%. So this option shows that, for each slow-beat cycle, there is a 75% chance the termination mechanism succeeds. The other fractions correspond to different success rates (for example, 10/16 would be 62.5%, 12/18 about 66.7%, and 14/16 about 87.5%), but 12/16 matches the described termination rate of 75%.