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1 · Case

Post-op hypoxia — the fever trap

A patient three days after major abdominal surgery develops new tachycardia (118), a low-grade fever, and a rising oxygen requirement (now 4 L). The lungs are near-clear on exam and there is mild unilateral calf tenderness. Synthetic, de-identified, educational only.

What is the leading diagnosis — and your next step?

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