What is the role of pulmonary function tests in the diagnosis of pulmonary veno-occlusive disease (PVOD)?

Updated: Oct 16, 2018
  • Author: Hakim Azfar Ali, MD; Chief Editor: Zab Mosenifar, MD, FACP, FCCP  more...
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Answer

The single-breath diffusing capacity for carbon monoxide (DLCO) is usually reduced in persons with PVOD. A restrictive ventilatory defect has also been reported in many cases. However, the decrease in DLCO is usually out of proportion to the degree of restrictive or obstructive abnormality.


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