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Type 1 diabetes sick-day care — USMLE Step 3 MCQ

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HardPediatrics (well-child, chronic management)Type 1 diabetes sick-day careUSMLE Step 3

A 13-year-old with type 1 diabetes has viral gastroenteritis, glucose 260 mg/dL and moderate urine ketones but can drink fluids. They ask whether to stop insulin because oral intake is reduced. What is the best sick-day instruction?

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

Reveal the answer and explanation

Correct answer: BContinue basal insulin with hydration and frequent glucose ketone monitoring

Explanation lettering: B = shown as A · A = shown as B · E = shown as C · C = shown as E

Basal insulin must continue during illness to limit ketosis; hydration and frequent glucose and ketone monitoring guide supplemental insulin and escalation. B, C, D and E increase risk of diabetic ketoacidosis.

Reference: American Diabetes Association, Standards of Care in Diabetes: https://diabetesjournals.org/care/issue/49/Supplement_1