Medicine If FEV1 is 1.3 L, FVC is 3.1 L in an adult man, the pattern is suggestive of: A Normal lung function B Restrictive lung disease C Obstructive lung disease D None of the above 💡 Explanation If FEV1 is 1.3 L, FVC is 3.1 L in an adult man, the pattern is suggestive of: ✓ Correct Answer: C. Obstructive lung disease