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?

A 42 year old man with a history of rheumatic fever as a chi…

A 42 year old man with a history of rheumatic fever as a child is awaiting valve replacement surgery to treat chronic mitral valve stenosis. He is severely short of breath, with rales and crackles audible over both lungs. There is pitting edema of the lower extremities and ascites in his abdomen. Which of the following forces is most likely causing the edema in this patient?