A 63-year-old on lithium presents with tremor and polyuria. Lithium level 1.4 mmol/L (target 0.4-1.0). eGFR 58. Best action?...

Question

A 63-year-old on lithium presents with tremor and polyuria. Lithium level 1.4 mmol/L (target 0.4-1.0). eGFR 58. Best action?

Accepted Answer

Reduce dose; check level and renal function

Answer

Stop lithium immediately and recheck level

Answer

No change

Answer

Add thiazide to reduce urine output

Answer

Switch to valproate today

prescribing safety assessment MCQ (SBA): Lithium toxicity (mild)