Unverified80% confidenceDecision RuleTime unknown
10-18月龄学步期腕围通常8-11cm，护腕应选可调节魔术贴款且预留2-3cm调节余量，固定圈内径过紧（勒出红印）会压迫血液循环，过松则容易滑脱失去保护作用
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