Smith (ENA) Aby, IgG


Sunquest Code:SMIGG  
Epic Code:LAB6370Epic Name:SMITH ENA AB IGG
Synonyms:ENA (Smith) Antibodies; Extractable Nuclear Antigen (Smith) 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.


Processing and Shipping

Specimen Processing:Centrifuge 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:Smith antibody is very specific for SLE but only occurs in 30-35% of SLE cases. The presence of antibodies to Smith is often associated with renal disease.


Click HERE to Report test errors or omissions.
*If no email program is associated with this computer, please contact:
systemlabguide@fairview.org for TestID: 260"