Laboratory Services

dsDNA Antibody

Name: Incyte Diagnostics
Address: 13103 E Mansfield Ave, Spokane Valley, Washington, 99216, USA
Telephone: +1-

Updated Test Information:

Test Description	dsDNA Antibody
Synonym(s)	Double stranded DNA, ANA, Antinuclear Antibodies, Anti-DNA
Test ID	DSDNA
General Information	dsDNA antibodies are a disease specific serological marker for the diagnosis and disease management of patients with systemic lupus erythematosus (SLE). More than 90% of sera from patients with active SLE contain dsDNA antibodies. Smaller amounts may be present in patients with other rheumatic disorders, chronic active hepatitis, infectious mononucleosis, and biliary cirrhosis. Assay results should be used in conjunction with clinical findings and other serological tests.
Specimen Type	Serum
Specimen Requirements	Tiger
Alternate Specimen Type	SST
Specimen Collection / Processing Instructions	Allow serum tubes to clot for a minimum of 30 minutes before centrifuging. Centrifuge within 1 hour of collection and no longer than 2 hours after collection. Failure to separate red cells from serum with 2 hours of collection may lead to inaccurate results.
Minimum Sample Volume	500 uL
Additional Processing Details	Caution: Serum samples are not to be repeatedly frozen and thawed, since this can cause analyte deterioration. They are to be thawed only once.
Stability	Stored at 22˚C: 8 hrs Stored at 2-8˚C: 2 weeks If assays are not completed within 2 weeks or the specimen is to be stored beyond 2 weeks, the serum should be frozen at or below -20˚C.
Unacceptable Specimen Conditions	Plasma, lipemic, hemolyzed or microbially contaminated samples.
Methodology	Fluorescent enzyme immunoassay (FEIA)
Estimated TAT	2-5 days
Testing Schedule	Monday-Friday, alternating days
CPT Code(s)	86225
Reference Range	Negative < 10 IU/mL Equivocal 10-15 IU/mL Positive > 15 IU/mL
Performing Lab	Incyte Diagnostics
LOINC Code(s)	33799-8