Central venous blood pressure
A) can be almost zero in the inferior vena cava
B) is usually 120 mm Hg during systole
C) is usually 80 mm Hg during diastole
D) both b and c above

Question

Quizplus · Accepted Answer

Central venous blood pressure is the pressure in the vena cava as it enters the right atrium. In the inferior vena cava, this pressure can be almost zero, as there is minimal resistance to blood flow and the pressure drops to near atmospheric pressure. Choices B and C are incorrect as they describe the blood pressure in the aorta, not in the vena cava.

Central Venous Blood Pressure