Spirometry — Patterns and Interpretation MCQ — NEET PG Practice Question | NEETPGAI
Spirometry — Patterns and Interpretation
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heart-pulse Physiology
A 42-year-old woman from Mumbai with a history of systemic sclerosis presents with progressive dyspnea and reduced exercise tolerance over 2 years. Physical examination reveals reduced chest expansion and fine end-inspiratory crackles at both lung bases. Spirometry shows: FEV₁ = 68% predicted, FVC = 62% predicted, FEV₁/FVC ratio = 0.82. DLCO = 55% predicted. What is the most likely spirometric pattern and its pathophysiologic basis?
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