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81443M
INFLAMMATORY BOWEL DISEASE SEROLOGY PANEL, SERUM

Test Code 81443M 
Test INFLAMMATORY BOWEL DISEASE SEROLOGY PANEL, SERUM 
Methodology ASCA - Enzyme-Linked Immunosorbent Assay (ELISA)
NSA - Indirect Immunofluorescent Assay (IFA) 
Description Includes Saccharomyces cerevisiae IgA / IgG (ASCA) and Neutrophil Specific Antibdies (NSA)

Useful as an adjunct in the diagnosis of patients suspected of having inflammatory bowel disease 

Specimen Draw blood in a plain red-top or serum gel tube. Spin down and send 0.5 mL of serum refrigerated in a screw-capped, plastic vial. 
Reference Values Saccharomyces cerevisiae ANTIBODY, IgA
Negative: 0.0-20.0 U
Equivocal: 20.1-24.9 U
Weakly positive: 25.0-34.9 U
Positive: > or =35.0 U

Saccharomyces cerevisiae ANTIBODY, IgG
Negative: 0.0-20.0 U
Equivocal: 20.1-24.9 U
Weakly positive: 25.0-34.9 U
Positive: > or =35.0 U

NEUTROPHIL SPECIFIC ANTIBODIES
Negative (not detectable)

The finding of a positive NSA with normal levels of
IgA and IgG ASCA is consistent with the diagnosis of ulcerative colitis. The finding of negative NSA with positive IgA and IgG ASCA is consistent with Crohn's disease. 

Analytic Time 1 Day 
Day(s) Test Set Up Tuesday, Thursday 
CPT Code(s) 83520 x 2  S. Cerevisiae antibody, IgA and S. Cerevisiae antibody, IgG
86255  NSA, Inflammatory Bowel Disease