04-09-2012, 06:00 PM
A patient is started on dobutamine, furosemide, and nitroglycerin. Compared with his other medications, which of the following effects is most specific for dobutamine?
A. Increased urine output
B. Improved left ventricular function
C. Increased heart rate
D. Increased cardiac conduction velocity
E. Decreased peripheral vascular resistance
Guys, thank you for your attention first. Do you agree that nitroglycerin could increase cardiac conduction velocity by increasing sympathetic tone ( by acting on beta 1 R, the same as dobutamine)? UW Qbank told me that the answer is D, which I can not agree. There seems to be no appropriate answer here..
Thx
A. Increased urine output
B. Improved left ventricular function
C. Increased heart rate
D. Increased cardiac conduction velocity
E. Decreased peripheral vascular resistance
Guys, thank you for your attention first. Do you agree that nitroglycerin could increase cardiac conduction velocity by increasing sympathetic tone ( by acting on beta 1 R, the same as dobutamine)? UW Qbank told me that the answer is D, which I can not agree. There seems to be no appropriate answer here..
Thx