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Order Code AASCA Saccharomyces cerevisiae Antibody, IgA, Serum

Additional Codes

Mayo Test ID
AASCA

Reporting Name

Saccharomyces cerevisiae Ab, IgA, S

Useful For

Helping clinicians distinguish between ulcerative colitis and Crohn disease in patients suspected of having inflammatory bowel disease by identifying Saccharomyces cerevisiae IgA antibody.

 

Measurement of anti-Saccharomyces cerevisiae antibodies (ASCA) and neutrophil-specific antibodies (NSA) are not useful to determine the extent of disease in patients with inflammatory bowel disease or to determine the response to disease-specific therapy including surgical resection of diseased intestine.

Specimen Type

Serum


Specimen Required


Container/Tube:

Preferred: Serum gel

Acceptable: Red top

Specimen Volume: 0.5 mL


Specimen Minimum Volume

0.4 mL

Specimen Stability Information

Specimen Type Temperature Time
Serum Refrigerated (preferred) 21 days
  Frozen  21 days

Reject Due To

Hemolysis

Mild OK; Gross reject

Lipemia

Mild OK; Gross reject

Icterus

Mild OK; Gross OK

Other

NA

Reference Values

Negative: ≤20.0 U

Equivocal: 20.1-24.9 U

Weakly positive: 25.0-34.9 U

Positive: ≥35.0 U

Reference values apply to all ages.

Performing Laboratory

Mayo Clinic Laboratories in Rochester

Day(s) and Time(s) Performed

Monday through Friday; 5 p.m.

Method Name

Enzyme-Linked Immunosorbent Assay (ELISA)

Test Classification

This test has been cleared or approved by the U.S. Food and Drug Administration and is used per manufacturer's instructions. Performance characteristics were verified by Mayo Clinic in a manner consistent with CLIA requirements.

CPT Code Information

86671

LOINC Code Information

Test ID Test Order Name Order LOINC Value
AASCA Saccharomyces cerevisiae Ab, IgA, S 47320-7

 

Result ID Test Result Name Result LOINC Value
AASCA Saccharomyces cerevisiae Ab, IgA, S 47320-7

Forms

If not ordering electronically, complete, print, and send a Gastroenterology and Hepatology Client Test Request (T728) with the specimen.