Yes, it is possible to have normal pulmonary function tests (PFTs) with severe pulmonary hypertension (PH). PFTs, including the diffusing capacity of the lungs for carbon monoxide (DLCO), can sometimes appear normal even in the presence of PH. This is why more specific tests, such as a right heart catheterization, are Show Full Answer

Yes, it is possible to have normal pulmonary function tests (PFTs) with severe pulmonary hypertension (PH). PFTs, including the diffusing capacity of the lungs for carbon monoxide (DLCO), can sometimes appear normal even in the presence of PH. This is why more specific tests, such as a right heart catheterization, are crucial for an accurate diagnosis. Right heart catheterization is considered the gold standard for diagnosing PH as it directly measures the blood pressure in the pulmonary arteries.

 This AI-generated response comes from myPHteam and other selected sources. It is not a substitute for medical advice. Always ask your doctor about specific health concerns.

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