Cardiac Pathophysiology Practice Test

A 70-year-old woman is admitted to the ICU with a urinary tract infection and develops severe sepsis. Her blood pressure is 85/40 mm Hg, heart rate is 125/min, and she has warm, flushed extremities. A pulmonary artery catheter is placed. Another patient in the ICU is in cardiogenic shock post-MI, with hypotension and cool, clammy skin.

A 65-year-old man with a history of hypertension and hyperlipidemia presents with a 3-month history of substernal chest pressure that occurs when he walks up two flights of stairs and is relieved within 5 minutes of rest. He denies any chest pain at rest. An exercise stress test is positive for ischemia. The patient's symptoms are attributed to a fixed atherosclerotic lesion in his left anterior descending artery.