Which of the following will elevate the plateau of the cardiac output curve?
A)Surgically opening the thoracic cage
B)Placing a patient on a mechanical ventilator
C)Cardiac tamponade
D)Decreasing parasympathetic stimulation of the heart
E)Decreasing sympathetic stimulation of the heart

Question

Quizplus · Accepted Answer

Decreasing parasympathetic stimulation of the heart will increase the heart rate and contractility, leading to an increase in cardiac output and elevation of the plateau of the cardiac output curve. The other options either do not directly affect cardiac output or may actually decrease it.

Which of the Following Will Elevate the Plateau of the Cardiac