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Test ID SSB SS-B/La Antibodies, IgG, Serum

Useful 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.

Method Name

Multiplex Flow Immunoassay

Reporting Name

SS-B/La Ab, IgG, S

Specimen Type


Specimen Required


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

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.

Performing Laboratory

Mayo Clinic Laboratories in Rochester

CPT Code Information


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

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.

Testing Algorithm

See Connective Tissue Disease Cascade (CTDC) in Special Instructions.

NY State Approved