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Digoxin toxicity with hypokalaemia — GPhC CRA MCQ

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HardCardiovascular TherapeuticsDigoxin toxicity with hypokalaemiaGPhC CRA

An 82-year-old woman takes digoxin 125micrograms daily and furosemide 40mg daily. Her daughter reports nausea, confusion and yellow-green visual disturbance. Recent bloods show potassium 3.1mmol/L and eGFR 42mL/min/1.73m2. What is the most appropriate action?

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Correct answer: C — Refer urgently for assessment of suspected digoxin toxicity.

Visual disturbance, nausea and confusion are consistent with digoxin toxicity, and hypokalaemia plus renal impairment increase the risk. This presentation needs urgent medical assessment and serum digoxin/electrolyte review. OTC symptomatic treatment would delay management of a potentially serious adverse effect.

Reference: BNF