TRAP - Tartrate Resistant Acid Phosphatase

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Type 5 acid phosphatase

• excessive bleeding
• fainting or feeling light-headed
• hematoma (blood accumulating under the skin)
• infection (a slight risk any time the skin is broken)
• multiple punctures to locate veins

This test has become less important in diagnosis of hairy cell leukemia since the widespread use of immunophenotyping, a method of identifying cells based on molecules found on the cell surface.

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.