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For hours, walk-ins and appointments.Synonyms
- ASCA
- Crohn's Disease
Test Includes
Saccharomyces cerevisiae, IgA; Saccharomyces cerevisiae, IgG
Expected Turnaround Time
3 - 5 days
Turnaround time is defined as the usual number of days from the date of pickup of a specimen for testing to when the result is released to the ordering provider. In some cases, additional time should be allowed for additional confirmatory or additional reflex tests. Testing schedules may vary.
Related Documents
Specimen Requirements
Specimen
Serum
Volume
0.4 mL
Minimum Volume
0.2 mL
Container
Red-top tube or gel-barrier tube
Collection
Specimen should be free of bacterial contamination, hemolysis, and lipemia.
Storage Instructions
Room temperature
Stability Requirements
Temperature | Period |
|---|---|
Room temperature | 14 days |
Refrigerated | 14 days |
Frozen | 14 days |
Causes for Rejection
Hemolysis; lipemia; heat-treated specimen; gross bacterial contamination
Test Details
Use
Semiquantitative detection of anti-Saccharomyces cerevisiae antibodies (ASCA) of the IgG and IgA classes in human sera. This assay is intended for use in the diagnosis of patients with Crohn's disease.
Methodology
Enzyme immunoassay (EIA)
Reference Interval
• Negative: <20 units
• Equivocal: 20.0−24.9 units
• Positive: ≥25 units
LOINC® Map
| Order Code | Order Code Name | Order Loinc | Result Code | Result Code Name | UofM | Result LOINC |
|---|---|---|---|---|---|---|
| 164657 | Saccharomyces cerevisiae Panel | 164658 | Saccharomyces cerevisiae, IgG | Units | 6713-2 | |
| 164657 | Saccharomyces cerevisiae Panel | 164659 | Saccharomyces cerevisiae, IgA | Units | 31032-6 |
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