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Title: Which of the following phenomena would be most likely to accompany increased myocardial oxygen ... Post by: Laney2623 on Feb 12, 2018 Which of the following phenomena would be most likely to accompany increased myocardial oxygen demand (MVO2)?
A) Inadequate ventricular end-diastolic pressure B) Use of calcium channel blocker medications C) Increased aortic pressure D) Ventricular atrophy Title: Which of the following phenomena would be most likely to accompany increased myocardial oxygen ... Post by: martinez6496 on Feb 12, 2018 Ans:
C Feedback: An increase in aortic pressure results in a rise in afterload, wall tension, and, ultimately, MVO2. Increased, not inadequate, ventricular end-diastolic pressure would cause an increase in MVO2, and medications such as calcium channel blockers would decrease MVO2. Hypertrophy of ventricles would occur in response to prolonged wall stress and consequent oxygen demand. |