Calcitonin

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A normal value is less than 10 pg/ml (picograms per milliliter).

Note: Normal ranges may differ by the laboratory of the health care provider; it is not uncommon to see different normal values for males and females. Sometimes, health care providers obtain a second (or even a third) calcitonin blood level after an intravenous (IV) infusion of calcium, especially when the health care worker suspects medullary carcinoma of the thyroid. This additional test would be necessary if the health care provider’s suspicion was very high but the baseline calcitonin value was normal.

Greater-than-normal levels may indicate:

• medullary carcinoma of thyroid
• insulinoma
• VIPoma
• lung cancer

Review Date: 02/27/2006
Reviewed By: Robert Hurd, MD, Department of Biology, College of Arts and Sciences, Xavier University, Cincinnati, OH. Review provided by VeriMed Healthcare Network.