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Loop diuretic monitoring — GPhC CRA MCQ

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ModerateCardiovascular TherapeuticsLoop diuretic monitoringGPhC CRA

A 72-year-old man with heart failure has furosemide increased from 20mg to 40mg each morning. He also takes ramipril and bisoprolol. His GP asks what follow-up should be arranged after the dose change. What monitoring is required?

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Correct answer: D — Check renal function and electrolytes after the dose increase

Loop diuretics can cause electrolyte disturbances, dehydration and renal function deterioration, particularly when combined with an ACE inhibitor. Urea, electrolytes and creatinine should be monitored after initiation or dose changes. Weight, symptoms and BP are also useful clinical measures in heart failure follow-up.

Reference: BNF; NICE CKS