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Digoxin toxicity — GPhC CRA MCQ

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ModerateCardiovascular TherapeuticsDigoxin toxicityGPhC CRA

A 78-year-old woman taking digoxin 125 micrograms daily and furosemide reports nausea, blurred yellow vision and new confusion. Her daughter says she has recently had diarrhoea and poor oral intake. What monitoring is required?

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Correct answer: B — Refer for urgent assessment of digoxin toxicity and electrolytes

Nausea, visual disturbance and confusion are features of possible digoxin toxicity. Dehydration and electrolyte disturbance, especially hypokalaemia, increase risk. Urgent clinical assessment, electrolytes, renal function and digoxin concentration may be needed.

Reference: BNF