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Nebulised salbutamol potassium — GPhC CRA MCQ

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ModerateRespiratory TherapeuticsNebulised salbutamol potassiumGPhC CRA

A resident using frequent nebulised salbutamol takes digoxin and a loop diuretic during an exacerbation. What monitoring is required?

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Correct answer: B — Monitor potassium and clinical status because high-dose beta2 agonists can lower serum potassium

Hypokalaemia can increase arrhythmia and digoxin toxicity risk. 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