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Pneumocystis jirovecii pneumonia — RACP Written MCQ

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ModerateInfectious DiseasesPneumocystis jirovecii pneumoniaRACP Written

A 43-year-old man with untreated HIV has dyspnoea, dry cough and fever. Oxygen saturation is 88% on room air and falls on exertion. CT chest shows diffuse bilateral ground-glass opacities. CD4 count is 48 cells/microlitre. What is the most likely diagnosis?

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Correct answer: A — Pneumocystis jirovecii pneumonia

Advanced HIV with subacute dyspnoea, exertional desaturation and diffuse ground-glass change is classic for Pneumocystis jirovecii pneumonia.

Reference: Therapeutic Guidelines: Antibiotic; Australian infectious diseases practice principles