Acute eosinophilic pneumonia — SCE Acute Medicine MCQ

Correct answer: B — Acute eosinophilic pneumonia

The key discriminator is that febrile hypoxaemia with diffuse ground glass after vaping and evolving eosinophilia, which makes Acute eosinophilic pneumonia the single best answer. Vasculitic pulmonary-renal syndrome is less appropriate because it does not address the dominant acute risk in the vignette; Bacterial meningitis would fit a different presentation or later stage of care. Acute pancreatitis and Aortic dissection are suboptimal because they would either delay time-critical treatment or follow the wrong acute pathway. Teaching point: SCE-style acute medicine questions usually test prioritisation using physiology, timing and a guideline-defined threshold, rather than isolated factual recall.

Reference: ERS eosinophilic lung disease review