Audio Qbank – Q112 – A 62F with COPD

A 62-year-old woman has been smoking two packs of cigarettes daily for 35 years. Physical examination shows clubbing. Which of the following arterial blood gas values is most likely to be seen in this patient?

↑ pCO2; ↑ pH; ↑ HCO3^–

↑ pCO2; ↑ pH; ↓ HCO3^–

↑ pCO2; ↑ pH; ↔ HCO3^–

↑ pCO2; ↓ pH; ↑ HCO3^–

↑ pCO2; ↓ pH; ↓ HCO3^–

↑ pCO2; ↓ pH; ↔ HCO3^–

↑ pCO2; ↔ pH; ↑ HCO3^–

↑ pCO2; ↔ pH; ↓ HCO3^–

↑ pCO2; ↔ pH; ↔ HCO3^–

↓ pCO2; ↑ pH; ↑ HCO3^–

↓ pCO2; ↑ pH; ↓ HCO3^–

↓ pCO2; ↑ pH; ↔ HCO3^–

↓ pCO2; ↓ pH; ↑ HCO3^–

↓ pCO2; ↓ pH; ↓ HCO3^–

↓ pCO2; ↓ pH; ↔ HCO3^–

↓ pCO2; ↔ pH; ↑ HCO3^–

↓ pCO2; ↔ pH; ↓ HCO3^–

↓ pCO2; ↔ pH; ↔ HCO3^–

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Cut-to-the-chase Answer (0:51):

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HY USMLE Answer (2:08):

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