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PERIODIC ACID-SCHIFF STAIN (089-3163) Synonyms: PAS CPT 4 Code: 88312 Test Order Mnemonic: PAS Applies To: Identification of certain leukemias, particularly Erythroleukemia and Sezary Syndrome Lab: Hematopathology Request Form: Hematology A Collection: Collect in EDTA. Invert 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 arrangement made Availability: Samples are accepted from 8AM to 2PM, Monday-Friday in Room 5.142, McCullough Building. 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 staining of glycogen (Hotchkiss); Microscopy. Interfering Substances: Inappropriate fixatives or anticoagulants, clotted specimen, inadequate spicules. Revised 10/10/07 by L.. Dornak, MT (ASCP) |
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