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CGP EDU Academic Team
Published on: August 14, 2026
What would happen to the cardiac output if the heart rate increases but the stroke volume remains constant?
Text Solution
Verified by ExpertsThe correct answer is:
B
Cardiac output is calculated by multiplying the stroke volume by the heart rate. If heart rate increases while stroke volume remains constant, the overall cardiac output will increase.
If heart rate increases while stroke volume stays the same, the cardiac output increases.
Example: HR 
.
If HR rises to 
with SV 70 mL 
(increase).
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