The following pulmonary function results were obtained: TLC 5.0 L 130% predicted DLCO 14.0 55% predicted FEV₁2.0 L FVC 3.5 L The results are consistent with: A) Interstitial lung disease B) Emphysema C) Asthma D) Neuromuscular disease

Question

Quizplus · Accepted Answer

The TLC (total lung capacity) is increased (130% predicted), which suggests air trapping and hyperinflation commonly seen in emphysema. The DLCO (diffusing capacity of the lung for carbon monoxide) is decreased (55% predicted), which is also typical of emphysema. The FEV1/FVC ratio is not provided, making it difficult to definitively rule out other possible diagnoses. The other options (interstitial lung disease, asthma, neuromuscular disease) are not supported by the given results.

The Following Pulmonary Function Results Were Obtained: TLC 5