The cardiovascular responses of a well-trained athlete are b…

The cardiovascular responses of a well-trained athlete are being studied during a marathon. Just before the athlete runs, heart rate (60 beats/min), blood pressure (110/80 mm Hg), and cardiac output (4.2 L/min) are recorded. What is the patient’s resting stroke volume (mls/stroke)?

A 56 yo man is involved in a automobile accident. He is brou…

A 56 yo man is involved in a automobile accident. He is brought to the emergency department complaining of chest discomfort. He has a sharp, stabbing chest discomfort, that radiates to his back. It has been intermittent in nature. His BP is 167/87 mmHg in the right, arm and 136/76 mmHg in the left arm. His pulse is 105 bpm and he is afebrile. On auscultation he has a 3/6 diastolic murmur in the left upper sternal border. Which test is most likely to confirm your diagnostic suspicion?