Which statement is true regarding the difference between resting and vigorous activity ECGs?

A) Heartbeat is slower and the QRS segment is higher after exercise.
B) Heartbeat is faster and the S-T segment is shorter after exercise.
C) Heartbeat is faster and the P wave is higher after exercise.
D) Heartbeat is slower and the P-R segment is longer after exercise.


Answer: B

Anatomy & Physiology

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