Chromatin IgG AB Chromatin IgG autoantibody h2a-h2b DNA autoantibody Histone-DNA complex
Test Includes
Chromatin Antibody
Methodology
Multiplex flow immunoassay
Rejection Criteria
Hemolysis Avoid repeated freeze/thaw cycles
Reference Range(s)
Negative: <1.0 AI Positive: >=1.0 AI
Specimen Requirements
Preferred Specimen
Serum separator tube
Minimum Volume
2 mL serum
Sample Stability
1 day room temperature 1 week refrigerated 6 months frozen
Transport Temperature
Refrigerated
Collection Instructions
Allow SST to clot in an upright position for at least 30 minutes, then centrifuge sample within 2 hours of collection. Refrigerate.
Alternative Specimen
2 mL serum from a plain red top tube. Allow sample to clot in an upright position for at least 60 minutes, then centrifuge sample and transfer serum to a plastic transport tube within 2 hours of collection. Clearly label tube as serum from a plain red top tube. Refrigerate.
