The following pulmonary function results were reported for a 25-year-old female. Measured Predicted FVC (L) 3.00 4.00 FEV₁1.60 3.20 TLC 5.50 5.00 These results are consistent with a(n): A) Obstructive process B) Restrictive pattern C) Extrathoracic lesion D) Mixed pattern

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The results show a reduced FEV1 and FVC with a decreased FEV1/FVC ratio, which is indicative of an obstructive process. The TLC is normal or increased, which further supports an obstructive pattern rather than a restrictive one.

The Following Pulmonary Function Results Were Reported for a 25-Year-Old