Anti Saccharomyces Cervisae (ASCA) IgA Antibody, Serum

Anti Saccharomyces Cerevisiae (ASCA) IgA Antibody, Serum

Overview

The Anti Saccharomyces Cerevisiae (ASCA) IgA Antibody test measures IgA antibodies directed against Saccharomyces cerevisiae (baker's yeast) in serum. ASCA antibodies are commonly associated with inflammatory bowel diseases (IBD), particularly Crohn's disease, and can assist in differentiating Crohn's disease from ulcerative colitis.

Why This Test is Done

• Supports the diagnosis of Crohn's disease.
• Helps differentiate Crohn's disease from ulcerative colitis.
• Assists in the evaluation of patients with chronic gastrointestinal symptoms.
• Used alongside clinical findings, imaging, endoscopy, and other laboratory tests.

Sample Required

• Sample Type: Serum
• Method: Immunoassay

When is the Test Recommended?

• Persistent abdominal pain
• Chronic diarrhea
• Unexplained weight loss
• Suspected inflammatory bowel disease (IBD)
• Monitoring and supporting diagnostic workup of Crohn's disease

Interpretation of Results

• Positive ASCA IgA: May indicate Crohn's disease and supports the diagnosis when correlated with clinical findings.
• Negative ASCA IgA: Does not completely rule out Crohn's disease.
• Results should always be interpreted along with other laboratory, radiological, and endoscopic findings.

Benefits of the Test

✔ Supports early diagnosis of inflammatory bowel disease
✔ Helps distinguish Crohn's disease from ulcerative colitis
✔ Aids gastroenterologists in treatment planning
✔ Simple blood test requiring only a serum sample

Preparation

• No special fasting is usually required unless advised by your healthcare provider.
• Inform your physician about any medications or ongoing medical conditions.

Test Details

Reliable serological support for the evaluation and differential diagnosis of inflammatory bowel disease (IBD).

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