| HLA-DRDQ Typing - ExtraRenal (082-0055(Cytotoxic), 082-00101(Molecular)) | |
|---|---|
| Test Mnemonic: | DR X, HLA-DR X, DRDQ X |
| Specimen Requirements: | |
| Collection: | Blood. 2 x 10mL blood (with normal white cell count) |
| Container: | Pale Yellow (Acid Citrate Dextrose) collection tube |
| Minimum Volume: | 10mL |
| Storage/Transport: | Room temperature; do not refrigerate |
| Specimen Preparation: | Routine Venipuncture |
| Stability: | Deliver immediately to Tissue Antigen Lab |
| Causes for Rejection: | Sample more that 72 hours old, incorrect tube, incorrect label, insufficient white cell count, poor viability. |
| Reference Range: | N/A |
| Turnaround Time: | Routine: 4 days; STAT: 8 hours |
| Methodology: | Cytotoxic and/or DNA typing for HLA DR and DQ loci |
| Performed: | Identification of patient's HLA DR and DQ locus antigens |
| Lab: | Tissue Antigen Laboratory |
| Synonyms: | DQ2, DQ8 |
| Clinical Indication: | Transplantation, Disease Association |
| Patient Preparation : | None |
| CPT 4 Code: | 86817(Cytotoxic); 81375(Molecular) |
| Note: | Samples can be delivered to the Tissue Antigen Laboratory, Room 3.350J, Children's Hospital, Monday-Friday, 8 AM to 5:00 PM. Samples received after noon will be processed the next business day. Schedule 24 hours in advance. The request form must contain the following information: patient name, UH #, physician's name, route, and extension. |
| When ordering tests for which Medicare or Medicaid reimbursement will be sought, physicians should only order tests that are medically necessary for the diagnosis or treatment of the patient. Components of the organ or disease panels may be ordered individually. The diagnostic information must substantiate all tests ordered and must be in the form of an ICD-10 code or its verbal equivalent. | |