Tartrate Resistant Acid Phosphatase (TRAP) for Gaucher clinical drug monitoring

Label Mnemonic:	GENTRAP
Epic code:	LAB4129
Downtime form:	Doctor/Provider Orders - Pathology Core and Specialty Care Nursery

Commercial Mailout Laboratory
6240-8 RCP
356-8593

Specimen(s):

Serum

Specimen Instructions:

If not able to ship same day drawn, aliquot and store serum frozen prior to shipment. Please add a comment to Test Requisition that sample was stored frozen.

Collection Medium:

Red top tube 5 mL (Clot Activator)

Minimum:

Pediatric Minimum: 2 mL serum in red top tube.

Rejection Criteria:

Gross hemolysis; gross lipemia; quantity not sufficient for analysis; improper container; past viability window; unlabeled or mislabeled specimen.

Specimens not received at reference laboratory within 4 days of specimen collection; do not collect on Fridays, holidays, day before a holiday, or weekends.

Turn Around Time:

7-14 days upon receipt at reference laboratory

Reference Range:

3 - 10 IU/L

Comments:

The Tartrate Resistant Acid Phosphatase (TRAP) colorimetric enzyme assay uses p-nitrophenyl phosphate as subtrate.

Testing used for patients on Cerezyme (part of Gaucher Disease clinical drug monitoring including ACE, TRAP and CHITO.

Time and temperature sensitive. Specimens must be received by reference laboratory within 4 days of blood draw.

Methodology:

Colorimetric Enzyme Assay

CPT Code:

84060