The<unk>  (abbreviated<unk> , as measured by a Swan-Ganz catheter, is the pressure measured in a pulmonary artery after occlusion of that artery.  Because of the large compliance of the pulmonary circulation, it provides an indirect measure of the left atrial pressure.
Pulmonary capillary wedge pressure
Cardiothoracic ratio
Central venous pressure
Arteriovenous oxygen difference
Mean arterial pressure
Pulmonary gas pressures
Ventilation/perfusion ratio
Stroke volume