Cardiac output is not affected by __________________?
Correct answer: C. Systolic blood pressure
- A. Heart rate
- B. Peripheral resistance
- C. Systolic blood pressure
- D. Venous return
Explanation
Cardiac output is calculated as heart rate multiplied by stroke volume, and venous return strongly influences stroke volume. Systolic blood pressure is an outcome or associated measure rather than a primary determinant of cardiac output, although pressure changes can indirectly affect it.
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