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Lithium monitoring — GPhC CRA MCQ

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HardCNS TherapeuticsLithium monitoringGPhC CRA

A patient on long-term lithium attends for a repeat prescription and says blood tests have been delayed. They report thirst and tremor. What monitoring is required?

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Correct answer: B — Serum lithium, renal function and thyroid function review

Lithium has a narrow therapeutic index and symptoms such as tremor and thirst may indicate toxicity or endocrine effects. Lithium level, renal and thyroid monitoring are required. In this scenario, the correct option is serum lithium, renal function and thyroid function review. The other options are plausible but do not address the key clinical, legal or safety issue as directly. This aligns with UK pharmacy practice guidance cited in the reference field.

Reference: https://www.pharmacyregulation.org/registration-assessment#stage-8-order-61