TYK51: Difference between revisions
Jump to navigation
Jump to search
https://pedsanesthesia.net/wikiOLD032021>JustinHamrick No edit summary |
m (1 revision imported) |
(No difference)
| |
Revision as of 16:48, 20 March 2021
Which of the following is NOT a determinant of myocardial oxygen supply?
A. Heart rate
B. Hemoglobin
C. LVEDP
D. Afterload
Answer
The answer is D. Afterload, in itself is a deteminant of myocardial oxygen demand. Diastolic blood pressure, not afterload (they are not the same) is a determinant of myocardial oxygen supply. The other determinants of myocardial oxygen supply are cardiac output (HR x SV), oxygen content, coronary perfusion pressure (DBP-LVEDP), heart rate, and wall tension. This question is courtesy of Yaster and in preparation of the oral boards in the spring.
Notes
Keywords