03-26-2007, 02:21 PM
A 57 year-old woman has chest pain while climbing the stairs of her office building. She sits down and takes some medication, after which she is able to continue. Which of the following is the mechanism of action of the drug?
A) Decreased afterload
B) Decreased preload
C) Increased afterload and preload
D) Increased preload
E) Increased contractility
A) Decreased afterload
B) Decreased preload
C) Increased afterload and preload
D) Increased preload
E) Increased contractility