SSB (La) (ENA) Antibody, IgG


Abbrev Code:SSBIGG   
Order Code:LAB6341Order Name:SSB La ENA Antibody IgG
Synonyms:Sjogren's La Antibody; La Antibody; Extractable Nuclear Antigen Antibody
Methodology:Fluorescent enzyme immunoassay
CPT Codes: 86235 x1
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)
Alternate Containers: Green (lithium heparin, 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 14 days.
Shipping Instructions:Ship at refrigerated temperature.
Test Performed at or Referral Lab Endocrine  (UMMC-East Bank)


Interpretive

Reference Range:
Negative Less than 7.0 U/mL
Positive Greater than 10 U/mL
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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