Ask the Expert

Get answers to your Osteoporosis questions.

Note: This is for informational purposes only. Doctors cannot provide a diagnosis or individual treatment advice via e-mail. Please consult your physician about your specific health care concerns.

Please install flash player to see this video.

Hospital Virtual Tour

Calcium - ionized - Results

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
Metastatic bone tumor
Milk-alkali syndrome
Multiple myeloma
Paget's disease
Sarcoidosis
Too muchvitamin D
Certain types of tumors
Use of thiazide diuretics

Lower-than-normal levels may be due to:

Blood test

Reviewed last on: 4/26/2007
Robert Hurd, MD, Professor of Endocrinology, Department of Biology, Xavier University, Cincinnati, OH. Review provided by VeriMed Healthcare Network.

References

Fukagawa M, Kurokawa K, Papadakis MA. Fluid & electrolyte disorders. In: McPhee SJ, Papadakis MA, Tierney LM Jr. Current Medical Diagnosis and Treatment 2007. New York, NY: McGraw Hill; 2007.

The information provided herein should not be used during any medical emergency or for the diagnosis or treatment of any medical condition. A licensed medical professional should be consulted for diagnosis and treatment of any and all medical conditions. Call 911 for all medical emergencies. Links to other sites are provided for information only -- they do not constitute endorsements of those other sites. © 1997- A.D.A.M., Inc. Any duplication or distribution of the information contained herein is strictly prohibited.

Home > Medical Reference > Encyclopedia (English)