MCQ IN MEDICINE

A 45 year old man presents to his physician complaining of edema in his lower extremities. Physical examination reveals mild-to-moderate pitting edema up to the level of the knee bilaterally, and a new grade 2 systolic ejection murmur that radiates to the carotids. The physician refers the patient to a cardiologist, who performs a thorough work-up, which shows:R-R interval:0.8 seconds Mean pulmonary artery pressure:15 mm Hg Right atrial pressure:2 mm Hg Left atrial pressure:5 mm Hg Mean arterial pressure (aorta):95 mm Hg Oxygen consumption (whole body):250 ml/min Oxygen content of femoral arterial blood:0.20 ml O2/ml blood Oxygen content of pulmonary arterial blood:0.15 ml O2/ml bloodWhat is the stroke volume for this patient?