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Sulfonylurea-induced hypoglycaemia — RACP Adult Medicine MCQ

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HardEndocrinology and diabetesSulfonylurea-induced hypoglycaemiaRACP Adult Medicine

An 82-year-old with eGFR 28 mL/min/1.73 m2 has recurrent hypoglycaemia after gliclazide despite IV dextrose. She has eaten poorly for two days. Which additional management is most appropriate?

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

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Correct answer: DStop the sulfonylurea, give octreotide and continue monitored glucose support because recurrent insulin release may persist

The best answer is “Stop the sulfonylurea, give octreotide and continue monitored glucose support because recurrent insulin release may persist”. Sulfonylurea-associated hypoglycaemia can recur after dextrose stimulates further insulin release, particularly with kidney impairment and poor intake. Octreotide suppresses pancreatic insulin secretion while glucose and electrolytes are monitored. A single normal reading is not safe discharge evidence; the culprit medicine should not be restarted before a full regimen review.

Reference: Australian Diabetes Society: Australian type 2 diabetes glycaemic management algorithm: https://www.diabetessociety.com.au/guideline/australian-t2d-glycaemic-management-algorithm-june-2024/