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Contents of this page: | |
Alternative names
PTHrpDefinition Return to top
PTH-related protein is a blood test that measures the amount of PTH-related peptide (a protein molecule similar to PTH).How the test is performed Return to top
Adult or child:How to prepare for the test Return to top
No special preparation is necessary.How the test will feel Return to top
When the needle is inserted to draw blood, some people feel moderate pain, while others feel only a prick or stinging sensation. Afterward, there may be some throbbing.Why the test is performed Return to top
This test is used to determine whether hypercalcemia (high blood calcium levels) is caused by an elevation of PTH-related protein. PTH-related protein is produced by some cancers and high levels are the cause of high calcium levels in about two thirds of cancer patients.Normal Values Return to top
No detectable (or minimal) PTH-like peptide is normal. Normal value ranges may vary slightly among different laboratories.What abnormal results mean Return to top
Elevated levels of PTH-related protein in a patient with hypercalcemia generally indicates that cancer is the underlying cause.What the risks are Return to top
Special considerations Return to top
Veins and arteries vary in size from one patient to another and from one side of the body to the other. Obtaining a blood sample from some people may be more difficult than from others. Update Date: 2/2/2004 Updated by: Tarun Jain, M.D., Endocrinology & Infertility Division, Brigham and Women's Hospital, Boston, MA. Review provided by VeriMed Healthcare Network.
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Page last updated: 28 October 2004 |