Endocrinology Book

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Arm Span

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  1. Indication
    1. Growth Assessment
  2. Measurement
    1. Extend both hands outward (each arm abducted to 90)
    2. Measure finger tip to Finger tip
  3. Normal results
    1. Children: Arm span is 1 cm shorter than height
    2. Adolescent: Arm span is same length as height
    3. Adult: Arm span exceeds height by more than 5 cm
    4. Longer arm spans
      1. Boys
      2. African american descent

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