The normal rhythm originating in the sinus node should have a heart rate that is
A)greater than 100.
B)less than 60.
C)between 40 and 60.
D)between 60 and 100.

Question

Quizplus · Accepted Answer

The normal heart rate range for the sinus node is between 60 and 100 beats per minute. Therefore, option D is the correct answer. Options A, B, and C are incorrect because they are outside of the normal range for the sinus node's heart rate.

The Normal Rhythm Originating in the Sinus Node Should Have