when is pulmonary wedge pressure measured
pulmonary capillary wedge pressure. Type:Term. Definitions. 1. the pressure obtained when a catheter is passed from the right side of the heart into the pulmonary artery as far as it will go and âwedgedâ into an end artery. PCWP is measured by letting pulmonary blood flow guide a balloon-flotation catheter into a small pulmonary end artery.