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Digoxin toxicity — GPhC CRA MCQ

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HardCardiovascular TherapeuticsDigoxin toxicityGPhC CRA

A 69-year-old man taking digoxin 125 micrograms daily and furosemide 40 mg daily reports nausea, yellow-green visual disturbance, and new palpitations. His recent potassium was 3.1 mmol/L. What monitoring is required?

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Correct answer: B — Urgent digoxin level, U&Es, ECG, and clinical assessment

The symptoms and hypokalaemia are concerning for digoxin toxicity, which can cause serious arrhythmias. Urgent assessment should include U&Es, ECG, and an appropriately timed digoxin level, with immediate medical advice. Hypokalaemia from diuretic therapy increases digoxin toxicity risk.

Reference: BNF; NICE CKS