The pulmonary artery end-diastolic pressure measured by a Swan-Ganz catheter is essentially equal to which of the following cardiac pressures?

Question

Quizplus · Accepted Answer

The pulmonary artery end-diastolic pressure is essentially equal to the left ventricular end-diastolic pressure in the absence of pathology in the vascular system between the tip of the catheter and the left ventricle.This occurs secondary to no valves in the pulmonary venous system leading to the pressures in the pulmonary veins,pulmonary capillaries,and pulmonary artery as equal at the end of diastole.

The Pulmonary Artery End-Diastolic Pressure Measured by a Swan-Ganz Catheter