Calcium For Children

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Alternative Names

Free calcium; Ionized calcium


Normal Values

Normal values may vary slightly from laboratory to laboratory.

  • Children: 4.4 - 6.0 milligrams per deciliter (mg/dL)
  • Adults: 4.4 - 5.3 mg/dL

What abnormal results mean

Greater-than-normal levels may be due to:

  • Hyperparathyroidism
  • Immobilization
  • Decreased urinary calcium levels of unknown cause (idiopathic hypocalciuria)
  • Metastatic bone tumor
  • Milk-alkali syndrome
  • ...
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