Test ID: SSA

Test Name: Anti-Sjögren's Syndrome Type A Antibodies or Anti-RO IgG Antibodies

Ordering Recommendation

Recommended as a second-line test based on ANA results or when ANA IFA is negative but there is strong clinical suspicion of Sjögren syndrome, systemic lupus erythematosus (SLE), systemic sclerosis, or myositis

Test Codes

EPIC Code: LAB344
Exsera Order Code: SSA
CPT Code: 86235

Specimen Requirements

Specimen Type: Serum

Collection Tube: Serum separator tube (SST) or red top

Collection Instructions: Separate serum from cells ASAP or within 2 hours of collection. Then transfer available serum to a standard transport tube.

Volume Required: 1 mL with a minimum of 500 mcL

Storage/Transport Temperature: Refrigerated/Frozen

Stability: Ambient (up to 8 Hours), refrigerated (up to 2 weeks/14days), frozen (up to 30 days) and avoid freeze/thaw cycles with no more than 3 in total

Unacceptable Conditions: Contaminated, heat-inactivated, containing clots fibrin or gross red blood cells, or severely lipemic hemolyzed or icteric samples

Reference Interval

Normal Human: <20

Test Classification

This test has been cleared by the US Food and Drug Administration and is used per manufacturer's instructions and per Exsera's SOPs. Performance characteristics were verified by Exsera in a manner consistent with CAP/CLIA requirements.

Methodology

ELISA or EIA

Patient Reporting

5 Business Days

Days Performed: M-F

Aliases

SSA, Anti-Sjögren's Syndrome Type A Antibodies or Anti-RO IgG Antibodies

Additional Notes

This test detects autoantibodies to both parts of the SSA antigen, SSA 60 and SSA 52.