Yale New Haven Hospital

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Saccharomyces cerevisiae antibodies, IgG and IgA

Lab Section: 

Sendout Reference

 

Lab Location: 

Sendout

Reference Lab: 

ARUP

 

Test ID: 

LAB548

 

ASCA IgA and ASCA IgG

 

Methodology: 

Semi-Quantitative Enzyme-Linked Immunosorbent Assay

Schedule: 

Daily

Reported: 

7 days

Specimen Requirements: 

Collection: 3.0 mL Blood in a Gold Top Tube.
Pediatric volume: 1 mL.
Serum separator tube.
Transport: Refrigerated.
Unacceptable conditions: 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)

 

Notes: 

Clinical Indications: 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.

Reference Interval: 

See patient report or consult reference laboratory website.

http://ltd.aruplab.com/Tests/Pub/0050564

CPT Code(s): 

86671 x2

Last Changed: 

8/23/2017 2:33:37 PM

Last Reviewed: 

8/23/2017 2:33:54 PM