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Digoxin toxicity — GPhC CRA MCQ

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HardCardiovascular TherapeuticsDigoxin toxicityGPhC CRA

A 70-year-old man takes digoxin 125micrograms daily and furosemide 40mg daily. He reports nausea, yellow-green visual disturbance and pulse 48/min. His latest blood test shows potassium 3.1mmol/L and eGFR 42mL/min/1.73m2. What is the most appropriate action?

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Correct answer: E — Refer urgently for assessment of possible digoxin toxicity

Nausea, visual disturbance and bradycardia are classic features of digoxin toxicity. Hypokalaemia and reduced renal function increase toxicity risk. This requires urgent clinical assessment, digoxin level and correction of contributing factors.

Reference: BNF; NICE CKS