Saccharomyces cerevisiae Antibodies (ASCA) (IgG, IgA)
Test Summary
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, specifically Crohn's disease, and are associated with more aggressive disease.
Aliases
- N/A
Specimen Collection
Special Instructions
N/A
Preferred Specimen
2 mL serum
Minimum Volume
0.6 mL
Instructions
N/A
Patient Preparation
N/A
Storage
N/A
Transport Temperature
Room temperature
Specimen Stability
- Room temperature: 14 days
- Refrigerated: 21 days
- Frozen: 21 days
Limitations
N/A
Other Acceptable Specimens
N/A
Unacceptable Specimens
Gross hemolysis • Lipemia
Order Code
SACCAB
EPIC (Premier) Code
LAB1329
Includes
N/A
CPT Code
- 86671 (x2)
Billing Code
- 670885
CPT Statement
Methodology
Immunoassay (IA)
FDA Status
FDA Approved
Physician Attestation of Informed Consent
N/A
Testing Laboratory
Quest Diagnostics Nichols Institute
14225 Newbrook Drive
Chantilly VA, 20153
14225 Newbrook Drive
Chantilly VA, 20153
Department
Reference Testing
Reference Range
Saccharomyces cerevisiae Ab (ASCA) (IgG)
Saccharomyces cerevisiae Ab (ASCA) (IgA)
| ≤20.0 U | Negative |
| 20.1-29.9 U | Equivocal |
| ≥30.0 U | Positive |
Saccharomyces cerevisiae Ab (ASCA) (IgA)
| ≤20.0 U | Negative |
| 20.1-24.9 U | Equivocal |
| ≥25.0 U | Positive |
Setup Schedule / Expected Turnaround Time
Tuesday - Saturday morning; Report available: 1 day
Specimen Collection
Special Instructions
N/A
Preferred Specimen
2 mL serum
Minimum Volume
0.6 mL
Instructions
N/A
Patient Preparation
N/A
Storage
N/A
Transport Temperature
Room temperature
Specimen Stability
- Room temperature: 14 days
- Refrigerated: 21 days
- Frozen: 21 days
Limitations
N/A
Other Acceptable Specimens
N/A
Unacceptable Specimens
Gross hemolysis • Lipemia
Result Information
Methodology
Immunoassay (IA)
Testing Laboratory
N/A
Reference Range
Saccharomyces cerevisiae Ab (ASCA) (IgG)
Saccharomyces cerevisiae Ab (ASCA) (IgA)
| ≤20.0 U | Negative |
| 20.1-29.9 U | Equivocal |
| ≥30.0 U | Positive |
Saccharomyces cerevisiae Ab (ASCA) (IgA)
| ≤20.0 U | Negative |
| 20.1-24.9 U | Equivocal |
| ≥25.0 U | Positive |
Setup Schedule / Expected Turnaround Time
Tuesday - Saturday morning; Report available: 1 day