The heart block rhythm that most closely resembles a normal sinus rhythm is a:
A) second-degree block,type I.
B) second-degree block,type II.
C) first-degree block.
D) third-degree block.

Question

Quizplus · Accepted Answer

A first-degree block is the mildest form of heart block, where there is a delay in the conduction of the electrical signals from the atria to the ventricles, but all signals are still being transmitted. This delay can be observed as a prolonged PR interval on an ECG, but the overall rhythm appears similar to a normal sinus rhythm.

The Heart Block Rhythm That Most Closely Resembles a Normal