Test Code SSB SS-B/La Antibodies, IgG, Serum
Reporting Name
SS-B/La Ab, IgG, SUseful For
Evaluating patients with signs and symptoms of a connective tissue disease in whom the test for antinuclear antibodies is positive
Testing for SS-B/La antibodies is not useful in patients without demonstrable antinuclear antibodies.
Testing Algorithm
See Connective Tissue Disease Cascade (CTDC) in Special Instructions.
Performing Laboratory

Specimen Type
SerumSpecimen Required
Container/Tube:
Preferred: Serum gel
Acceptable: Red top
Specimen Volume: 0.5 mL
Specimen Minimum Volume
0.35 mL
Specimen Stability Information
Specimen Type | Temperature | Time | Special Container |
---|---|---|---|
Serum | Refrigerated (preferred) | 21 days | |
Frozen | 21 days |
Special Instructions
Reference Values
<1.0 U (negative)
≥1.0 U (positive)
Reference values apply to all ages.
Day(s) and Time(s) Performed
Monday through Saturday; 4 p.m.
Test Classification
This test has been cleared or approved by the U.S. Food and Drug Administration and is used per manufacturer's instructions. Performance characteristics were verified by Mayo Clinic in a manner consistent with CLIA requirements.CPT Code Information
86235
LOINC Code Information
Test ID | Test Order Name | Order LOINC Value |
---|---|---|
SSB | SS-B/La Ab, IgG, S | 33613-1 |
Result ID | Test Result Name | Result LOINC Value |
---|---|---|
SSB | SS-B/La Ab, IgG, S | 33613-1 |
Reject Due To
Gross hemolysis | Reject |
Gross lipemia | Reject |
Gross icterus | OK |
Method Name
Multiplex Flow Immunoassay