Which situation would lead to an increase in cardiac output?
1. Reduced cardiac contractility
2. Hypovolemia
3. Peripheral vascular resistance
4. Increase in preload
4
Rationale 1: A reduction in cardiac contractility results in lower preload and subsequent cardiac output.
Rationale 2: Hypovolemia is a lower blood volume and will result in lower cardiac output.
Rationale 3: Peripheral vascular resistance increases afterload and increases the workload on the heart.
Rationale 4: Increased preload results in a more forceful contraction and increases cardiac output.
Global Rationale: Increased preload results in a more forceful contraction and increases cardiac output. A reduction in cardiac contractility results in lower preload and subsequent cardiac output. Hypovolemia is a lower blood volume and will result in lower cardiac output. Peripheral vascular resistance increases afterload and increases the workload on the heart.
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