Synonyms: Family Genotype HLA-DR

CPT Code: 86817

Test Order Mnemonic: GEN II, GENX II

Test Includes: Genotype assignment of patient and family members

Applies To: Transplantation, disease association

Lab: Tissue Antigen Lab (TAL)

Request Form: TAL charge slip

Patient Preparation: Predialysis

Collection: Routine venipuncture

Storage Instructions: Deliver immediately to lab at room temperature, do not refrigerate

Causes for Rejection: Sample more than 72 hours old, incorrect tube or label, insufficient white cell count, poor cell viability

Availability: 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.

Turnaround Time: Routine: 4 days; STAT: 8 hours

Special Instructions: Schedule 24 hours in advance. The request form must contain the following information: patient name, UH #, physician's name, route, and extension.

Specimen: Blood

Volume: 10 mL blood (with normal white cell count)

Minimum Volume: 8 mL blood (with normal white cell count)

Container: Pale Yellow-topped tube (acid citrate dextrose)

Reference Ranges: 0, 1, or 2 haplotype match

Revised 05/18/2009 by C. Garcia