Description
The anti-Saccharomyces cerevisiae (ASCA) IgG and IgA test is ordered to help distinguish between Crohn's disease (CD) and ulcerative colitis (UC) in patients with signs and symptoms of inflammatory bowel disease (IBD):
- Abdominal pain and cramps
- Diarrhea
- Rectal bleeding
- Fever
- Fatigue
- Joint, skin, bone and organ-related symptoms
- Delayed development and growth retardation in children
The test measures the levels of IgG and IgA antibodies in the blood. The presence of both IgG and IgA antibodies in the same serum sample is highly specific for Crohn's Disease.
Fasting not required.
