Swan-Ganz Catheter is mainly used to measure
|A||The right ventricular pressure|
|B||The right heart pressure|
|C||Left ventricular pressure|
|D||The pulmonary capillary pressure|
a. Assessment of circulatory function in the pulmonary vasculature depends on measuring pulmonary vascular pressures and cardiac output.
b. With a flow-directed pulmonary arterial (Swan-Ganz) catheter, PAP and pulmonary capillary wedge pressure can be measured directly, and cardiac output can be obtained by the thermodilution method. Pulmonary vascular resistance (PVR) can then be calculated according to the equation.
where PVR = pulmonary vascular resistance (dyn · s/cm5); PAP = mean pulmonary arterial pressure (mmHg); PCW = pulmonary capillary wedge pressure (mmHg); and CO = cardiac output (L/min).The normal value for pulmonary vascular resistance is ~50–150 dyn · s/cm5