SSB (La) (ENA) Antibody, IgG


Sunquest Code:SSBIGG  
Epic Code:LAB6341Epic Name:SSB La ENA Antibody IgG
Synonyms:Sjogren's La Antibody; La Antibody; Extractable Nuclear Antigen Antibody
Methodology:Multiplex flow immunoassay
CPT Code:86235
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 severely lipemic specimens.


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:SSB (La) antibody is seen in 50-60% of Sjogren's syndrome cases and is specific if it is the only ENA antibody present. 15-25% of patients with SLE and 5-10% of patients with progressive systemic sclerosis (PSS) also have this antibody.


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