Home › MCQs › OPRA Biomedical Sciences › Question #3797
Back to Questions
OPRA Biomedical Sciences QUESTION #3797
Question 1
Which of the following is the primary physiological determinant of the heart's oxygen requirement?
  • Systolic blood pressure✔️
  • Diastolic blood pressure
  • Cardiac output
  • Blood volume
Correct Answer Explanation
Myocardial oxygen demand is most strongly influenced by systolic wall tension, which correlates with systolic blood pressure, heart rate, and contractility.