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HelpTest Code LAB0206513 Saccharomyces cerevisiae Antibody, IgA, Serum
Additional Codes
| Mayo Test ID |
|---|
| SCERA |
Specimen Required
Collection Container/Tube:
Preferred: Serum gel
Acceptable: Red top
Submission Container/Tube: Plastic vial
Specimen Volume: 0.5 mL
Collection Instructions: Centrifuge and aliquot serum into a plastic vial.
Useful For
Measuring IgA anti-Saccharomyces cerevisiae antibodies as a part of a profile to aid in distinguishing between ulcerative colitis and Crohn disease in patients for whom the specific diagnosis is unclear based on endoscopic, pathologic, and imaging evaluations
This test is not useful for determining the extent of disease in patients with inflammatory bowel disease or determining the response to disease-specific therapy including surgical resection of diseased intestine
Method Name
Enzyme-Linked Immunosorbent Assay (ELISA)
Reporting Name
Saccharomyces cerevisiae Ab, IgA, SSpecimen Type
SerumSpecimen Minimum Volume
0.4 mL
Specimen Stability Information
| Specimen Type | Temperature | Time | Special Container |
|---|---|---|---|
| Serum | Refrigerated (preferred) | 21 days | |
| Frozen | 21 days |
Reject Due To
| Gross hemolysis | Reject |
| Gross lipemia | Reject |
| Gross icterus | OK |
| Heat-treated specimen | Reject |
Reference Values
Negative: <20.0 RU/mL
Positive: ≥20.0 RU/mL
Reference values apply to all ages.
Interpretation
The presence of antineutrophil cytoplasmic antibodies (ANCA) in the absence of IgA and IgG anti-Saccharomyces cerevisiae antibodies (ASCA) is consistent with the diagnosis of ulcerative colitis; the presence of IgA and IgG ASCA in the absence of ANCA is consistent with Crohn disease.
Day(s) Performed
Tuesday, Thursday
Report Available
2 to 4 daysSpecimen Retention Time
14 daysPerforming Laboratory
Mayo Clinic Laboratories in Rochester
Test Classification
This test was developed and its performance characteristics determined by Mayo Clinic in a manner consistent with CLIA requirements. It has not been cleared or approved by the US Food and Drug Administration.CPT Code Information
86671
LOINC Code Information
| Test ID | Test Order Name | Order LOINC Value |
|---|---|---|
| SCERA | Saccharomyces cerevisiae Ab, IgA, S | 47320-7 |
| Result ID | Test Result Name | Result LOINC Value |
|---|---|---|
| SCERA | Saccharomyces cerevisiae Ab, IgA, S | 47320-7 |