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Hypokalaemia with loop diuretic — GPhC CRA MCQ

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EasyCardiovascular TherapeuticsHypokalaemia with loop diureticGPhC CRA

A patient taking high-dose furosemide reports cramps and palpitations after diarrhoea. What monitoring is required?

Educational content. Not a substitute for clinical judgement or local policy.

Reveal the answer and explanation

Correct answer: A — Check urea and electrolytes, especially potassium, and assess clinically

Loop diuretics and gastrointestinal losses can cause clinically significant electrolyte disturbance. In this scenario, the pharmacist should prioritise safe supply, appropriate counselling and timely referral or clarification where needed. This is the single best answer because the other options would either delay assessment, ignore a clinically significant risk, or create an unsafe legal or professional outcome.

Reference: BNF