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PCWP (Pulmonary Capillary Wedge Pressure) measures the pressure in the small blood vessels of your lungs and reflects the pressure in the left side of your heart. A normal or low PCWP is considered 15 millimeters of mercury (mm Hg) or less. Having a PCWP of 15 mm Hg or less, along with other measurements, can help doctors Show Full Answer

PCWP (Pulmonary Capillary Wedge Pressure) measures the pressure in the small blood vessels of your lungs and reflects the pressure in the left side of your heart. A normal or low PCWP is considered 15 millimeters of mercury (mm Hg) or less. Having a PCWP of 15 mm Hg or less, along with other measurements, can help doctors determine if you have precapillary pulmonary hypertension. This measurement is important because it helps your healthcare team choose the most appropriate treatment plan for your specific type of PH.

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