Saccharomyces cerevisiae Profile

CPT: 86671(x2)
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Test Details

Synonyms

  • ASCA
  • Crohn's Disease

Test Includes

Saccharomyces cerevisiae, IgA; Saccharomyces cerevisiae, IgG

Use

Semiquantitative detection of anti-Saccharomyces cerevisiae antibodies (ASCA) of the IgG and IgA classes in human sera. This assay is intended for use in the diagnosis of patients with Crohn's disease.

Methodology

Enzyme immunoassay (EIA)

Reference Interval

• Negative: <20 units

• Equivocal: 20.0−24.9 units

• Positive: ≥25 units

Specimen Requirements

Specimen

Serum

Volume

0.4 mL

Minimum Volume

0.2 mL

Container

Red-top tube or gel-barrier tube

Collection

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

Storage Instructions

Room temperature

Stability Requirements

Temperature

Period

Room temperature

14 days

Refrigerated

14 days

Frozen

14 days

Causes for Rejection

Hemolysis; lipemia; heat-treated specimen; gross bacterial contamination

LOINC® Map

Order Code Order Code Name Order Loinc Result Code Result Code Name UofM Result LOINC
164657 Saccharomyces cerevisiae Panel 164658 Saccharomyces cerevisiae, IgG Units 6713-2
164657 Saccharomyces cerevisiae Panel 164659 Saccharomyces cerevisiae, IgA Units 31032-6

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The LOINC® codes are copyright © 1994-2017, Regenstrief Institute, Inc. and the Logical Observation Identifiers Names and Codes (LOINC) Committee. Permission is granted in perpetuity, without payment of license fees or royalties, to use, copy, or distribute the LOINC® codes for any commercial or non-commercial purpose, subject to the terms under the license agreement found at https://loinc.org/license/. Additional information regarding LOINC® codes can be found at LOINC.org, including the LOINC Manual, which can be downloaded at LOINC.org/downloads/files/LOINCManual.pdf