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EXTNU / ENAE-M
EXTRACTABLE NUCLEAR ANTIGEN EVALUATION

Test Code EXTNU / ENAE-M 
Test EXTRACTABLE NUCLEAR ANTIGEN EVALUATION 
Methodology Multiplex Flow Immunoassay 
Description Useful for: Evaluating patients with signs and symptoms of a connective tissue disease in whom the test for antinuclear antibodies (ANA) is positive. 
Specimen Draw blood in a plain red-top tube or serum gel tube. Spin down and send 0.5 mL (0.4 mL minimum) of serum in a screw capped plastic vial. 
Reference Values SS-A/Ro Antibodies, IgG
< 1.0 U (negative)
> or = 1.0 U (positive)
Reference values apply to all ages.

SS-B/La Antibodies, IgG
< 1.0 U (negative)
> or = 1.0 U (positive)
Reference values apply to all ages.

Sm Antibodies, IgG
< 1.0 U (negative)
> or = 1.0 U (positive)
Reference values apply to all ages.

RNP Antibodies, IgG
< 1.0 U (negative)
> or = 1.0 U (positive)
Reference values apply to all ages.

Scl 70 Antibodies, IgG
< 1.0 U (negative)
> or = 1.0 U (positive)
Reference values apply to all ages.

Jo 1 Antibodies, IgG
<1.0 U (negative)
> or = 1.0 U (positive)
Reference values apply to all ages. 

Analytic Time 2 Days 
Day(s) Test Set Up Monday through Friday 
CPT Code(s) 86235 6