HLA-B27 GENOTYPING (CONFIRMATION)

Components
To be used as confirmation of HLA-B27 screen (B27)

Specimen Required
Draw blood in a lavender EDTA. Send 3.0 mL whole blood (1.0 mL minimum) refrigerated.

Alternate Specimen
Whole blood: ACD A

Rejection Criteria
Serum, plasma, sodium heparin preservative

Methodology
Polymerase Chain Reaction/Fluorescence Monitoring

Stability
Room temperature: 72 hours; Refrigerated: 1 week; Frozen: Unacceptable

Reference Range
Negative:   The specimen is negative for HLA-B27  
Positive:   The specimen is positive for HLA-B27  

Performed
Sunday-Saturday

Turnaround Time4-8 days
Test CodeB27A
CPT-4 Code (s)
81374
LOINC Codes
HLA B27:   26043-0  
Specimen:   31208-2  

Warde
Medical
Laboratory