|
|
| A B C D E F G H I J K L M N O P Q R S T U V W X Y Z # |
Saccharomyces cerevisiae Antibodies (ASCA) (IgA)
Test Code10295
CPT Codes
86671
Preferred Specimen
1 mL serum
Minimum Volume
0.3 mL
Transport Temperature
Room temperature
Specimen Stability
Room temperature: 14 days
Refrigerated: 21 days
Frozen: 21 days
Refrigerated: 21 days
Frozen: 21 days
Reject Criteria (Eg, hemolysis? Lipemia? Thaw/Other?)
Gross hemolysis • Lipemia
Methodology
Immunoassay (IA)
Setup Schedule
Tuesday-Saturday Morning
Report available: Next Day
Report available: Next Day
Reference Range
≤20.0 U
| Value | Interpretation |
| ≤20.0 | Negative |
| 20.1-24.9 | Equivocal |
| ≥25.0 | Positive |
Clinical Significance
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.
