USMLE Step 1 - Question 38

A 70 year old male presents with chest pain and is found to have an anterior wall myocardial infarction. Appropriate therapy is initiated, however he becomes profoundly hypotensive. His Swan-Ganz catheterization pressures are below (pressures in mmHg):

Right atrium - 20

Right ventricle – 44/19

Pulmonary artery – 46/24

Pulmonary capillary wedge pressure – 20

Cardiac index – 1.9 L/min/BSA2 (normal 2.4-4.4 L/min/BSA2)

Which of the following medications will siginficantly improve his cardiac index (cardiac output)?

A. milrinone

B. furosemide

C. epoprostenol

D. vasopressin

PROCEED TO ANSWER