Saccharomyces cerevisiae Antibodies (ASCA) (IgG)
Test Code
10294
86671
Clinical Significance
Saccharomyces cerevisiae Antibodies (ASCA) (IgG) - Antibodies to saccharomyces cerevisiae are found in approximately 75% of patients with Crohn's disease, 15% of patients with ulcerative colitis, and 5% of the healthy population. High titers of antibody increase the likelihood of disease, and specifically Crohn's disease, and are associated with more aggressive disease.
Test Resources
Test Details
Methodology
Immunoassay (IA)
Reference Range(s)
≤20.0 U
| Value | Interpretation |
| ≤20.0 | Negative |
| 20.1-29.9 | Equivocal |
| ≥30.0 | Positive |
Alternative Name(s)
Inflammatory Bowel Disease,ASCA,IBD
Preferred Specimen(s)
1 mL serum
Minimum Volume
0.3 mL
Transport Container
Transport tube
Transport Temperature
Room temperature
Specimen Stability
- Room temperature: 14 days
- Refrigerated: 21 days
- Frozen: 21 days
Reject Criteria
Gross hemolysis • Lipemia
Setup Schedule
1 mL serum
0.3 mL
Transport tube
Room temperature
Room temperature: 14 days
Refrigerated: 21 days
Frozen: 21 days
Refrigerated: 21 days
Frozen: 21 days
Gross hemolysis • Lipemia