Sign in →

Test Code Billings Clinic: 8025 Anti-Ro60 (SSA-60), IgG, Serum

Additional Codes

Ordering Mnemonic
MayoAccess: BCL868

 

Performing Laboratory

Billings Clinic Laboratory: Immunology

Useful For

  • The presence of anti-Ro60 autoantibodies, in conjunction with clinical findings and other laboratory tests, aids in the diagnosis of Systemic Lupus Erythematosus and Sjögren’s Syndrome.

  • Autoantibodies to Ro60 are found in 30-50% of patients with SLE and 50-80% of patients with Sjögren’s syndrome.  

  • Anti-Ro60 antibodies have also been found in patients with clinical features of SLE who are ANA negative.

  • Anti-Ro antibodies have special diagnostic significance in congenital heart block. Isolated congenital complete atrioventricular block (CAVB) shows a close association with maternal anti-Ro and anti-SS-B (La) antibodies

  • Positive anti-Ro60 result is one of the three criteria as specified in the American College of Rheumatology Classification Criteria for Sjögren’s Syndrome.

Methodology

Chemiluminescent Immunoassay

Specimen Requirements

  • Draw blood in a serum gel tube(s).
  • Spin down and send 0.5 mL of serum frozen in plastic vial.

Storage/Stability

Specimen Type Temperature Time
Serum Refrigerated 2 weeks
  Frozen (preferred) 1 year
  Ambient (spun) 48 hours

 

Reject Due To

  • Specimen other than serum
  • Microbially contaminated specimen
  • Heat-treated specimen

Reference Values

<20 CU (Chemiluminescent Units)

 

Interpretive Remark:  The following results were obtained with the INOVA QUANTA Flash Ro60 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-Ro60, IgG 53019-0