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Test Code Billings Clinic: 7082 Autoantibodies to Sm, IgG Serum

Additional Codes

Ordering Mnemonic
MayoAccess: BCL399

Performing Laboratory

Billings Clinic Laboratory: Immunology

Useful For

  • It is intended to aid in the diagnosis of systemic lupus erythematosus (SLE). 
  • Autoantibody levels represent one parameter in a multicriterion diagnostic process.

Methodology

Chemiluminescent immunoassay

Specimen Requirements

  • Draw blood in a serum gel tube(s).
  • Spin down and send 1 mL of serum frozen in plastic vial.

Storage/Stability

Specimen Type Temperature Time
Serum Refrigerated 14 days
  Frozen (preferred) 1 year
  Ambient (spun) 48 hours

 

Reject Due To

  • Microbial contamination
  • Heat-treated specimens
  • Specimen other than serum

Reference Values

<20 CU (Chemiluminescent Units)

 

Interpretive Remark:  The following results were obtained with the INOVA QUANTA Flash Sm Chemiluminescent immunoassay.  Values obtained with different manufacturers' assay methods may not be used interchangeably.

Day(s) Test Set Up

Tuesday, Thursday

Test Classification and CPT Coding

86235 - Extractable nuclear antigen, antibody to, any method, each antibody

LOINC Code Information

Reporting Name LOINC Code
Anti-Sm 33564-6