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CGM Time in Range Target — RACP Paediatrics MCQ

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ModerateEndocrinologyCGM Time in Range TargetRACP Paediatrics

A 10-year-old girl with type 1 diabetes has been using a continuous glucose monitor (CGM). Her time in range (3.9-10.0 mmol/L) is 55%. What is the recommended target for time in range?

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

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Correct answer: A — Greater than 70%

ISPAD 2024 recommends TIR >70% (equivalent to approximately HbA1c <53 mmol/mol), time below range (<3.9 mmol/L) <20 mmol/mol, and time below range (<3.0 mmol/L) <1%. CGM metrics complement HbA1c for glycaemic assessment.

Reference: ISPAD – 2024 – CGM Targets