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You are here : 3-RX.com > Medical Encyclopedia > Tests and Exams > Calcium, Ionized: Results and Values

Calcium, Ionized

Alternate Names : Ionized Calcium, Free Calcium

Calcium, Ionized | Preparation & Expectations | Results and Values

What do the test results mean?

The normal range for levels of free calcium in the blood is from 4.4 to 5.3 milligrams per deciliter (mg/dl) in adults and from 4.4 to 6.0 mg/dl in children.

Abnormally high levels of free calcium may indicate:

  • hyperparathyroidism, or excess activity of the parathyroid glands
  • metastatic bone tumor, or cancer cells are spreading to other parts of the body from a tumor in the bone
  • milk-alkali syndrome, which occurs when continuous ingestion of antacids has caused loss of normal body acidity
  • multiple myeloma, a cancer of the bone marrow
  • Paget's disease, a bone disorder causing deformities
  • sarcoidosis, a disorder causing abnormalities of the bones, lungs, skin, eyes, muscles and lymph nodes
  • tumors producing molecules that mimic the activity of the parathyroid glands
  • vitamin D intoxication
  • Abnormally low levels of free calcium may indicate:

  • hypoparathyroidism, or abnormally low activity of the parathyroid glands
  • malabsorption of nutrients from the bowel
  • osteomalacia, or bone softening in adults
  • pancreatitis, or inflammation of the pancreas
  • kidney failure
  • rickets, or bone softening in children
  • vitamin D deficiency

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    Calcium, Ionized: Preparation & Expectations

     

    Author: David T. Moran, MD
    Reviewer: Sandy Keefe, RN, MSN
    Date Reviewed: 09/19/01



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