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Digoxin toxicity — GPhC CRA MCQ

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EasyCardiovascular TherapeuticsDigoxin toxicityGPhC CRA

A 78-year-old woman taking digoxin 125 micrograms daily presents with nausea, poor appetite and yellow-green visual disturbance. She recently started clarithromycin. Her pulse is 48 bpm. What is the most appropriate action?

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

The symptoms and bradycardia are concerning for digoxin toxicity. Clarithromycin can increase digoxin exposure. Symptomatic advice or dose continuation would delay necessary urgent review.

Reference: BNF; NICE CKS