Casandra
Casandra Test Code QD83876Version 1 (DRAFT)
Performing Lab
HLA A29 Birdshot Retinochoroidopathy
Clinical Use
Order TestUse
The HLA‑A*29 allele is strongly associated with Birdshot Retinochoroidopathy (BSCR), an autoimmune ocular disorder that can lead to severe visual impairment. Not all individuals with the allele develop the disease, and differential diagnoses should include sarcoidosis, tuberculosis, syphilis, and ocular lymphoma when clinical features are not typical.
Special Instructions
Not provided.
Limitations
Not provided.
Test Details
Methodology
PCR-based (PCR)
Biomarkers
HLA‑A*29 allele
OtherHLA‑A29 Determination
Other • Binary (Detected / Not Detected)
LOINC Codes
Order Codes
- 44724-3 - HLA-A29 Ql
Result Turnaround Time
8 days
Related Documents
For more information, please review the documents below
Specimen Requirements
Specimen
Whole Blood
Volume
5 mL
Minimum Volume
3 mL
Container
EDTA (lavender‑top) tube
Collection Instructions
If submitted with any other tests, please submit separate tube for this test. Do not open tube or split sample.
Storage Instructions
Room temperature
Causes for Rejection
Clotted
Stability Requirements
| Temperature | Period |
|---|---|
| Room Temperature | 7 days |
| Refrigerated | 7 days |
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