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Question

52 year-old male

Answer

1. None of the five parameters is normal
2. Because both the FEV₁ and the FEV₁/FVC are low, this is an obstructive pattern. Because the FVC is only 69% of predicted, there could also be a restrictive issue as well. However, this can only be confirmed by a decrease in the total lung capacity.
3. Because the FEV₁ < 50%, this is severe obstruction.
4. No bronchodilator was administered.