Lithium monitoring — GPhC CRA MCQ
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Correct answer: B — Contact the prescriber and plan lithium and renal monitoring
Thiazide and thiazide-like diuretics can reduce lithium clearance and precipitate toxicity. The combination should be reviewed before supply; if clinically necessary, lithium dose and concentration need close monitoring alongside renal function and toxicity counselling.
Reference: BNF: lithium carbonate: https://bnf.nice.org.uk/drugs/lithium-carbonate/