Saccharomyces cerevisiae Ab.IgG

AllergyAlso known as: Baker's yeast IgG Fld Qn IAAlso known as: Baker's yeast IgG Msmt SerAlso known as: Baker's yeast IgG Ql IAug/mL

Detects immune antibodies against baker's yeast protein.

Normal Range
Consult your provider
ug/mL
Abnormal Levels
Consult your provider
Specimen Type
Blood

Why This Biomarker Matters

Yeast antibodies may indicate intestinal immune dysfunction or inflammatory bowel disease. Results help support diagnosis but must be combined with clinical evaluation.

Overview

This test detects IgG antibodies against baker's yeast (Saccharomyces cerevisiae) in your blood. While baker's yeast is common in foods like bread, elevated antibodies may indicate an atypical immune response. This test is sometimes used in the evaluation of inflammatory bowel disease (Crohn's disease and ulcerative colitis), where immune dysregulation occurs. Positive results may suggest intestinal inflammation or altered gut immune function. However, this test is not diagnostic on its own and must be interpreted alongside clinical symptoms and other findings.

Technical Information (LOINC Codes)

Standardized laboratory codes for this biomarker

35538-8Primary
Baker's yeast IgG Ab [Mass/volume] in Serum
ug/mL
102846-3
Baker's yeast IgG Ab [Presence] in Serum by Radioallergosorbent test (RAST)
6713-2
Baker's yeast IgG Ab [Units/volume] in Serum
[arb'U]/mL
47321-5
Baker's yeast IgG Ab [Units/volume] in Serum by Immunoassay
[arb'U]/mL
63332-1
Baker's yeast IgG Ab [Units/volume] in Body fluid by Immunoassay
[IU]/mL
63333-9
Baker's yeast IgG Ab [Presence] in Serum by Immunofluorescence
81421-0
Baker's yeast IgG Ab [Presence] in Serum by Immunoassay

Available Lab Tests

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