Lithium routine monitoring — GPhC CRA MCQ

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EasyCNS TherapeuticsLithium routine monitoringGPhC CRA

A patient taking lithium carbonate MR asks why regular blood tests are needed despite feeling well. What monitoring is required?

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Correct answer: B — Lithium level plus renal and thyroid function monitoring

Lithium has a narrow therapeutic index and requires serum level, renal function and thyroid monitoring. This makes lithium level plus renal and thyroid function monitoring the single best answer in this scenario. The other options would either miss the key safety issue, delay appropriate review, or fail to meet the relevant clinical or professional requirement.

Reference: BNF; NICE CKS