Tartrate resistant acid phosphatase test
Alternate Names : Type 5 acid phosphatase test, TRAP test
Normal Values
There should be less than 5 nanogram per milliliter (ng/mL) of acid phosphatase in the presence of tartrate. Note: Normal value ranges may vary slightly among different laboratories. Talk to your doctor about the meaning of your specific test results.
What do Abnormal Results Mean?
A high level of TRAP in leukemia cells supports a diagnosis of hairy cell leukemia.
A high level of TRAP in the blood plasma is a sign of bone breakdown. This can be due to many types of diseases, but in a patient with cancer it is likely a sign that the cancer has spread to bone.
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