67. A patient with chronic heart failure experiences worsening dyspnea on exertion and orthopnea. What is the technical pathophysiological mechanism driving the orthopnea?
A.
Peripheral vasoconstriction.
B.
Redistribution of fluid from the lower extremities to the pulmonary circulation when lying flat.
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C.
Decreased venous return.
D.
Increased cardiac contractility.
📖 Additional Information
Peripheral vasoconstriction.
Redistribution of fluid from the lower extremities to the pulmonary circulation when lying flat.
