Reference Interval:
| Available Separately
| Components
| Reference Interval
| | | Saccharomyces cerevisiae Antibody, IgG
| 20.0 Units or less: Negative
20.1-24.9 Units: Equivocal
25.0 Units or greater: Positive
| | | Saccharomyces cerevisiae Antibody, IgA
| 20.0 Units or less: Negative
20.1-24.9 Units: Equivocal
25.0 Units or greater: Positive
| | | Anti-Neutrophil Cytoplasmic Antibody, Atypical Pattern
| < 1:20: Not significant
| |
|
| Interpretive Data: |
P-ANCA antibodies are found in 50-70% of ulcerative colitis (UC) patients, but in only 20% of Crohn disease (CD) patients. In contrast, Saccharomyces cerevisiae IgG antibodies are found in 80% of CD patients, but only 20% of UC patients. Saccharomyces cerevisiae IgA antibodies are found in 35% of CD patients but < 1% in UC patients.
|
| Note: |
This test may be a useful tool for distinguishing ulcerative colitis (UC) from Crohn disease (CD) in patients with suspected inflammatory bowel disease.
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| CPT Code(s): |
86671 x2 Semiquantitative immunoassay-fungus not elsewhere specified; 86255 Fluorescent noninfectious agent antibody screen
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Cross References: |
IBD (Inflammatory Bowel Disease Differentiation Profile), IBD Differentiation Profile (Inflammatory Bowel Disease Differentiation Profile) |