USMLE Step 1 Quiz
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CARDIOVASCULAR SYSTEM
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A 68-year-old man with chronic systolic heart failure is being evaluated. His physician explains that his heart's ability to pump blood is reduced. According to the Frank-Starling mechanism, which of the following variables, when increased, would most directly increase this patient's stroke volume?
Which of the following would most directly increase stroke volume via the Frank-Starling mechanism?
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