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OSMOTIC FRAGILITY (089-3146) Synonyms: RBC Fragility CPT 4 Code: 85557 Test Order Mnemonic: RBCFRAG Applies To: Employed to help diagnose different types of anemia, in which RBC physical properties are altered; helpful in detecting spherocytosis. Lab: Hematopathology Request Form: Hematology B Collection: Routine venipuncture. Specimen must be transported to lab immediately. Patient Preparation: Patient and normal control must be fasting Cause For Rejection: Clotted, received in lab in excess of 30 minutes after collection, identification error. Availability: Samples are accepted 8 AM - 1 PM, Monday-Thursday only, in Hematopathology Lab (5.142 McCullough ) Turnaround Time: 48 hours Special Instructions: Test must be approved by Hematologist or Pathologist and scheduled with laboratory prior to collection. 1-2 day notice is required. Physician ordering test is responsible for collecting a Normal Control Specimen to be delivered to lab with specimen to be tested (Call lab 409-772-7369). Specimen: Blood Volume: 5 ml Minimum Volume: 3 ml Container: Heparin (Green-top tube) Reference Ranges: Interpretation by Hematologist or Pathologist Test Method: Osmotic Saline Dilutions Interfering Substances: Hemolysis Revised 10/17/06 by L. Hinson, MT (ASCP) |
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