When a person lies down_______________?
Correct answer: A. There is immediate increase in venous return
- A. There is immediate increase in venous return
- B. Heart rate becomes stable at slightly more than normal
- C. Cerebral blood flow increase & becomes stable at more than normal
- D. Blood flow to the Apex of lung decrease
Explanation
Lying down removes the hydrostatic pooling of blood in the legs, so venous return rises immediately. This increases ventricular filling and can subsequently alter cardiac output and reflex heart rate.
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