Reference Interval:
| Available Separately
| Components
| Reference Interval
| | | Saccharomyces cerevisiae Antibody, IgG
| £ 20 Units: No Antibody Detected
21-24 Units: Equivocal
³ 25 Units: Positive
| | | Saccharomyces cerevisiae Antibody, IgA
| £ 20 Units: No Antibody Detected
21-24 Units: Equivocal
³ 25 Units: Positive
| | | Anti-Neutrophil Cytoplasmic Antibody, Atypical Pattern
| < 1:20: Not significant
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| 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.
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| 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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