Inflammatory Bowel Disease (IBD)

Alphabetical Test listing

Inflammatory Bowel Disease (IBD)-13541

Inflammatory Bowel Disease (IBD)
Bowel disease
Crohn's disease
Ulcerative colitis

Rule out Crohn's disease and ulcerative colitis.


Gold SST

1.5 mL
0.7 mL
Note: This volume does not allow for repeat testing

SST - spin

Red - spin and separate.


Serum separator (SST) tube

LabCorp 12mL plastic transport tube labelled as serum




Specimen should be free of bacterial contamination, hemolysis, and lipemia.

LabCorp Burlington (164830): R-LC
2 - 9 days

Atypical ANCA: Indirect fluorescent antibody (IFA)

Saccharomyces cerevisiae, IgA and IgG: Enzyme immunoassay (EIA)


Saccharomyces cerevisiae, IgA: negative: < 20.0

Saccharomyces cerevisiae, IgG:
Equivocal: 20.1 - 24.9
positive: ≥ 25.0

Atypical antineutrophil cytoplasmic antibodies: negative: < 1:20


IgA and IgG antibody testing for S. cerevisiae is useful adjunct testing for differentiating Crohn's disease and ulcerative colitis.  Nearly 80% of Crohn's disease patients are positive for either IgA or IgG.  In ulcerative colitis, less than 15% are positive for IgG, and less than 2% are positive for IgA.  Fewer than 5% of healthy controls are positive for either IgG or IgA antibody, and no healthy controls had antibody for both.  The atypical ANCA pattern has been observed in a significant percentage of patients with ulcerative colitis, primary sclerosing cholangitis, and autoimmune hepatitis.

86671 x 2
Result 49503-6