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Tartrate-resistant acid phosphatase (TRAP)

Also known as:Tartrate resistant acid phosphatase

Why should I do it?
TRAP is a test performed on blood cells or bone marrow (biopsy) to confirm a diagnosis of hairy cell leukemia. This test can also be done on blood plasma to look For Signs of bone breakdown.

When should I do it?
If you have signs of hairy cell leukemia. This test may also be done to monitor the activity of cancers that have spread to your bones. These cancers include multiple Myeloma, and breast, lung, or prostate cancers. However, the test is not yet widely used for this purpose.

What Kind of Sample is Needed?
Yes. Blood is typically drawn from a vein, usually from the inside of the elbow or the back of the hand. This test also can be done on a bone marrow biopsy.

Test Preparation Needed?
None