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TB Meningitis — RACP Adult Medicine MCQ

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ModerateInfectious DiseasesTB MeningitisRACP Adult Medicine

A 45-year-old woman with CSF showing lymphocytic predominance, protein 2.2 g/L, glucose 1.2 mmol/L (serum 5.8). Most likely diagnosis?

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Correct answer: E — Tuberculous meningitis

Lymphocytic CSF with very low glucose (ratio <0.3), elevated protein, elevated opening pressure = TB meningitis. GeneXpert MTB/RIF on CSF. Add dexamethasone.

Reference: eTG – 2025 – Antibiotic; NTAC – 2022