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NDNA
DNA DOUBLE-STRANDED (DS-DNA) ANTIBODY, SERUM

Test Code NDNA 
Test DNA DOUBLE-STRANDED (DS-DNA) ANTIBODY, SERUM 
Methodology Indirect Immunofluorescence 
Description Useful for evaluation of patients with suspected systemic rheumatic disease, especially systemic lupus erythematosus (SLE). 
Specimen Draw blood in either a plain red-top tube or serum gel tube. Spin down and send 1.0 mL (minimum volume: 0.5 mL) of serum refrigerated in a screw-capped, plastic vial. If specimen will not arrive within 2 days of draw, send specimen FROZEN in plastic vial on dry ice. 
Reference Values Negative
If positive, result will be titered to endpoint. 
Analytic Time 1 to 3 Days 
Day(s) Test Set Up Monday, Wednesday, Friday 
CPT Code(s) 86225  
86256  DNA Titer if appropriate