Saccharomyces cerevisiae Antibody, IgA/IgG

Test Codes

EPIC: LAB1231945, Beaker: XSACA, Quest: 17609

Department

Send Outs

Specimen Collection Criteria

Collect (preferred specimen): One Gold-top SST tube.
Also Acceptable: One plain Red-top tube.

Physician Office/Draw Specimen Preparation

Let specimen clot 30-60 minutes then centrifuge to separate serum from cells. Transfer serum to plastic transport tube and maintain at room temperature (20-26°C or 68-78.8°F) prior to transport.

Preparation for Courier Transport

Transport: 2.0 mL serum, room temperature (20-26°C or 68-78.8°F). (Minimum: 0.6 mL)

Rejection Criteria

• Lipemic specimen.
• Grossly hemolyzed specimen.
• Specimens not collected and processed as indicated.

In-Lab Processing

Let specimen clot 30-60 minutes then centrifuge to separate serum from cells. Transfer serum to plastic transport tube and maintain at room temperature (20-26°C or 68-78.8°F) prior to transport.

Transport: 2.0 mL serum, room temperature (20-26°C or 68-78.8°F). (Minimum: 0.3 mL)

Storage

Specimen Stability for Testing:

Room Temperature (20-26°C or 68-78.8°F): 14 days
Refrigerated (2-8°C or 36-46°F): 21 days
Frozen (-20°C/-4°F or below): 21 days
Specimen Storage in Department Prior to Disposal:

Specimen retention time is determined by the policy of the reference laboratory. Contact the Send Outs Laboratory with any questions.

Laboratory

Sent to Quest Diagnostics, Wood Dale, IL.

Performed

Information unavailable.

Reference Range

By report.

Test Methodology

Immunoassay (IA)

Clinical Utility

Saccharomyces cerevisiae Antibodies (ASCA) (IgG, IgA) – Antibodies to Saccharomyces cerevisiae are found in approximately 75% of patients with Crohn's disease, 15% of patients with ulcerative colitis, and 5% of the healthy population. High titers of antibody increase the likelihood of disease, specifically Crohn's disease, and are associated with more aggressive disease.

CPT Codes

86671 x 2

Contacts

Last Updated

11/19/2025