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

Specimen:Blood
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)


Interpretive

Reference Range:
 
Negative Less than 1.0 AI
Positive 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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