What Is a Tissue Transglutamination (tTg) IgG?

By taking and testing a small sample of a person’s blood, doctors can check for many kinds of diseases and conditions. Blood tests help doctors check how the body’s organs are working and see if medical treatments are helpful.

To help your child get ready for a blood test, find out if they need to fast (not eat or drink) or should stop taking medicines before the test. Explain what to expect during the test. If your child is anxious about it, work together on ways to stay calm.

Why Are tTG-IgA Tests Done?

Doctors may order a tTG-IgA test if a child has symptoms of celiac disease, such as poor growth, belly pain, constipation, vomiting, diarrhea, or rashes.

The test also might be done if a child has a condition that makes the celiac disease more likely (such as type 1 diabetes), thyroid disease, or a family member with celiac disease.

How Do We Prepare for a tTG-IgA Test?

For the test to be accurate, your child should be on a gluten-containing diet until the test is done.