A male patient has presented with the following results for spirometry and plasma Po2. What is your diagnosis? (Use your lecture notes to derive the normal range for these parameters. Also note that usually plasma O₂ is determined by saturation percentage, not Po2, but humour me here). Parameter Vital Capacity FEV₁ FVC Arterial Po2 Venous Poz Value 4340 ml 3310 ml 4120 ml 86 mmHg 134 mmHg

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