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The TTG-IgA test is mainly used to help diagnose celiac disease, an autoimmune condition where the body reacts to gluten found in wheat, barley, and rye.
Doctors recommend this test if you have symptoms like chronic diarrhea, bloating, stomach pain, fatigue, unexplained weight loss, anemia, or frequent digestive discomfort after eating gluten-containing foods.
Fasting is usually not required for a TTG-IgA blood test. However, it is important to continue eating gluten before the test unless your doctor advises otherwise.
The TTG-IgA test is an important screening test for celiac disease, but a doctor may recommend additional tests like an intestinal biopsy to confirm the diagnosis.
The test requires a small blood sample, usually collected from a vein in your arm.
People with digestive issues, iron deficiency anemia, unexplained fatigue, family history of celiac disease, or autoimmune disorders may benefit from a TTG-IgA test.
Yes. If you stop eating gluten before the test, the antibody levels may become low and lead to a false-negative result.
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Getting a TTG-IgA test has several benefits:
If diagnosed early, managing celiac disease becomes much easier with proper gluten-free diet. Ignoring it for long time can lead to nutritional deficiencies.
| Result Type | Reference Range |
| Negative | Less than 20 U/mL |
| Positive | Above normal reference value |
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