Interpretation of Pulmonary Function Tests

7. 30 year old non-smoking man with a chronic cough. An arterial blood gas demonstrates a pO2 = 94 and a pCO2 = 32. 8. 55 year old woman with dyspnea on exertion. The chest x-ray is normal. While breathing room air, her pO2 is 48. While breathing 100% oxygen, her calculated physiologic shunt is 18%. ................
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