Percent Predicted Diffusion Capacity of the Lung for Carbon Monoxide/Alveolar Volume Ratio

**Semantic type:** Diagnostic Procedure

**Definition:** The calculated ratio of the lung's alveolar volume with respect to its diffusion capacity for carbon monoxide, expressed as a proportion of the predicted normal value.

**Synonyms:** - DLCOVAPP - Percent Predicted DLCO/VA - Percent Predicted DLCO/VA