Pulmonary Vascular Resistance (PVR) is the resistance to flow that must be overcome to push blood through the pulmonary vascular. Acute and chronic lung disease
can both cause an increase in PVR. Chronic PVR can lead to right sided heart failure.

How to Calculate Pulmonary Vascular Resistance – PVR

Pulmonary Vascular Resistance (dyne*sec)/cm^-5) = ( 80 * (MPAP – PCWP) / CO )

Mean Pulmonary Artery Pressure (MPAP):
Pulmonary Capillary Wedge Pressure (PCWP):
Cardiac Output (CO):
Pulmonary Vascular Resistance, PVR =


What is Normal Pulmonary Vascular Resistance?

20 – 130 dyn·s/cm5

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