Question:
Which of the following correctly explains a phase/ event in the cardiac cycle
in a standard electrocardiogram?
a. QRS complex indicates atrial contraction.
b. QRS complex indicates ventricular contraction.
c. The time between S and T represents atrial systole.
d. P-wave indicates the beginning of ventricular contraction.
Solution:
Option (b) QRS complex indicates ventricular contraction is the answer.
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