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Severe community-acquired pneumonia — PARA MCQ

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HardGeneral Medicine - RespiratorySevere community-acquired pneumoniaPARA

A 75-year-old woman with fever and productive cough has confusion, urea 9 mmol/L, respiratory rate 32/min and blood pressure 88/54 mmHg. Chest X-ray shows right lower-zone consolidation. What is the most likely cause?

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Correct answer: EStreptococcus pneumoniae infection

Severe community-acquired pneumonia is most commonly due to Streptococcus pneumoniae; CURB-65 features suggest high severity.

Reference: NICE NG138: Pneumonia; BTS CAP guideline