SACCHAROMYCES CEREVISIAE ANTIBODIES, IGG, IGA

Mnemonic

MISC

Specimen Collection Requirements

Collect

Serum separator tube.

Handling

Separate serum from cells ASAP or within 2 hours of collection. Transfer 0.5 mL serum to a Standard Transport Tube. (Min: 0.3 mL)

Transport

Refrigerated.

Rejection Criteria

Contaminated, heat-inactivated, hemolyzed, or severely lipemic specimens.

Stability

After separation from cells: Ambient: 48 hours; Refrigerated: 2 weeks; Frozen: 1 year (avoid repeated freeze/thaw cycles)

Testing Information

Note

Saccharomyces cerevisiae IgG antibodies are found in 60-70% of Crohn disease (CD) patients and 10-15% of ulcerative colitis (UC) patients. Saccharomyces cerevisiae IgA antibodies are found in about 35% of CD patients but less than 1% in UC patients. Detection of both Saccharomyces IgG and IgA antibodies in the same serum specimen is highly specific for CD.

Performed

Sun-Sat

Method

Semi-Quantitative Enzyme-Linked Immunosorbent Assay

Referral Lab

ARUP 0050564

Reference Values

Reference Values

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

CPT Codes

86671 x2

Last Updated: Thursday, January 5, 2017 03:42:29 AM