Sign in →

Test Code DNACR DNA (ds) Antibody, Crithidia IFA with Reflex to Titer

Additional Codes

Epic: LAB8726

Quest: 37092

Testing Algorithm

If the DNA (ds) Antibody Screen is positive, DNA (ds) Antibody Titer will be performed at an additional charge (CPT code(s): 86256).

Specimen Required

Patient Preparation: Overnight fasting is preferred

Specimen Type: Serum

Collection Container/Type

Preferred: Serum gel

Acceptable: Red top

Submission Container/Tube: Plastic vial

Specimen Volume: 1 mL

Specimen Minimum Volume

0.2 mL

Specimen Stability

Room temperature: 7 days

Refrigerated: 16 days

Frozen: 35 days

Reference Range


Day(s) and Time(s) Performed

Mon, Wed, Fri a.m.

Report Available

Next day

Clinical Significance

dsDNA Antibody is detected in patients with active systemic lupus erythematosus (SLE) and approximately 20% of patients with mixed connective tissue disease.

Method Name

Immunofluorescence Assay (IFA)

CPT Code(s)


Performing Laboratory

Quest Diagnostics Nichols Institute
14225 Newbrook Drive
Chantilly, VA 20153


Crithidia Luciliae Substrate Assay,Native DNA Antibody,Double Stranded DNA Antibody