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PEROXIDASE STAIN (089-3162)
Synonyms: Myeloperoxidase Stain CPT 4 Code(s): 88319 Test Order Mnemonic: PEROX Applies To: Identification of acute leukemias, particularly acute myelocytic leukemia Lab: Hematopathology Request Form: Hematology A Collection: Collect in EDTA. Invert specimen promptly to prevent clotting. Storage Instructions: Deliver specimen to Hematopathology within 30 minutes of collection. Cause For Rejection: QNS, old specimen, identification errors, receipt in lab after hours unless prior arrangements made. Availability: Samples are accepted from 0800 to 1400, Monday-Friday, in Room 5.142, McCullough. Turnaround Time: 48 hours Special Instructions: Test must be approved by Hematopathologist or Hematology/Oncology Faculty member. Specimen: Blood, Bone marrow aspirate Volume: 2.0 ml Minimum Volume: 1.0 ml Container: EDTA (Lavender-top tube) Reference Ranges: Interpretive Test (call Lab) Test Method: Cytochemical enzymatic reaction between peroxidase (in granules) and diaminobenzidene tetrahydrochloride (DAB). Interfering Substances: Inappropriate fixatives or anticoagulants, clotted specimen, inadequate spicules. Revised 10/10/07 by L.. Dornak, MT(ASCP) |
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