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Injection technique — SCE Endocrinology MCQ

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ModerateDiabetesInjection techniqueSCE Endocrinology

A 38-year-old woman with type 1 diabetes has severe lipohypertrophy and recurrent hypoglycaemia after moving injections to normal skin. Her previous doses are unchanged. What is the most likely explanation?

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

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Correct answer: A — Improved insulin absorption from normal tissue

Moving from lipohypertrophic tissue to normal skin can markedly improve insulin absorption, so previous doses may become excessive. This is why dose review must accompany injection-site changes. Insulin allergy typically causes local or systemic allergic symptoms, not isolated recurrent hypoglycaemia.

Reference: NICE NG17; BNF