A 15-year-old girl is brought to the emergency department because of a 6-hour history of confusion, disorientation, and lethargy. She reports being thirsty and has been using the bathroom a lot. Vitals are: temperature 98.6F, HR 100, RR 22, BP 100/70. Laboratory studies show a serum glucose of 420 mg/dL and an arterial pH of 7.17. Arterial blood gas analysis is most likely to show which of the following?
↑ HCO3–; ↑ pCO2; ↑ Anion gap
↑ HCO3–; ↑ pCO2; ↔ Anion gap
↑ HCO3–; ↓ pCO2; ↑ Anion gap
↑ HCO3–; ↓ pCO2; ↔ Anion gap
↓ HCO3–; ↑ pCO2; ↑ Anion gap
↓ HCO3–; ↑ pCO2; ↔ Anion gap
↓ HCO3–; ↓ pCO2; ↑ Anion gap
↓ HCO3–; ↓ pCO2; ↔ Anion gap
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Cut-to-the-chase Answer (0:58):
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HY USMLE Answer (3:59):
