Which of the following is a characteristic of sinus bradycardia?
A)The QRS duration is between 0.10 and 0.16 second.
B)The heart rate is less than 60 beats per minute.
C)The shape of the P waves varies from one beat to the next.
D)The PR interval is between 0.06 and 0.10 second.

Question

Quizplus · Accepted Answer

Sinus bradycardia is defined as a sinus rhythm with a heart rate less than 60 beats per minute. The QRS duration, shape of P waves, and PR interval may all be normal in sinus bradycardia.

Which of the Following Is a Characteristic of Sinus Bradycardia