Unverified85% confidenceDecision RuleTime unknown
臂圈内径应比孩子上臂围小1-2cm,充气后紧贴皮肤不留缝隙;测量上臂最粗处,内径过大会导致臂圈上滑脱落,过小则勒得孩子哭闹
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85%
Confidence
Long-term
Relevance
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