TRAP - Tartrate Resistant Acid Phosphatase

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Type 5 acid phosphatase

There should be less than 5 ng/ml of acid phosphatase in the presence of tartrate.

Note: ng/ml = nanogram per milliliter

A high level in leukemia cells supports a diagnosis of hairy cell leukemia.

A high level in the plasma indicates bone breakdown. This can be due to many types of diseases, but in a patient with cancer it is likely related to bone invasion (metastasis) by the cancer.

Review Date: 07/29/2005
Reviewed By: William Matsui, M.D., Assistant Professor of Oncology, Division of Hematologic Malignancies, The Sidney Kimmel Comprehensive Cancer Center at Johns Hopkins, Baltimore, MD. Review provided by VeriMed Healthcare Network.