SSA (Ro) (ENA) Antibody, IgG

Sunquest Code:SSAIGG  
Epic Code:LAB6339Epic Name:SSA Ro ENA Antibody IgG
Synonyms:Sjogren's Ro Antibody; Ro Antibody; Extractable Nuclear Antigen Antibody
Methodology:Multiplex flow immunoassay
Turnaround Time:Performed Mon-Fri; results reported the same day.

Collection Instructions

Optimal Volume:2 mL
Minimum\Peds Volume:0.9 mL
Container:Red or gold (gel) (Green (lithium heparin, gel), Green (sodium heparin, no gel), Purple (EDTA), Red (no gel))
Causes for Rejection:Gross hemolysis or severe lipemia.

Processing and Shipping

Specimen Processing:Centrifuge ASAP and aliquot 1 mL, 0.35 mL minimum. Store in refrigerator up to 7 days.
Shipping Instructions:Ship at refrigerated temperature.
Test Performed at or Referral Lab Specialty Core  (UMMC-East Bank)


Reference Range:



Less than 1.0 AI


1.0 AI or greater


Antibody index (AI) values reflect qualitative changes in antibody concentration that cannot be directly associated with clinical condition or disease state.




Use:SSA (Ro) antibody is seen in 70-75% of Sjogren's syndrome cases, 30-40% of SLE, and 5-10% of progressive systemic sclerosis (PSS).

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