medical history, physical exam, and lab tests
often point to celiac disease. The diagnosis is confirmed with a small
biopsy collected during an
endoscopy, where a small tube is guided
down a person's throat to the small intestine.
Tests for celiac disease should be done when you or your child is still eating a diet that includes gluten. If you have already started a gluten-free diet before these tests are done, the doctor may suggest that you or your child eat a certain amount of gluten before the tests.
Are you on a gluten-free diet? Regular breads, bagels, muffins, and many other store-bought baked goods are not allowed on gluten-free eating plans.
Here's what you need to know before you buy gluten-free grain products or bake them at home.
Celiac disease triggers the
immune system to produce certain
antibodies. Blood tests that find and measure these
IgAtTG: Immunoglobulin A (IgA) anti-tissue
transglutaminase (tTG) antibody.
IgAEMA: Immunoglobulin A (IgA) antiendomysial antibody (EMA).
A biopsy taken during an
upper gastrointestinal endoscopy may be done to
confirm celiac disease after antibodies have been found. Sometimes a biopsy
detects celiac disease when a person is being tested for another
If the biopsy shows signs of celiac disease
(such as abnormal villi and inflammation in the
small intestine), a
gluten-free diet will be recommended.
A diagnosis of
celiac disease is confirmed if the diet makes symptoms
go away and if antibody tests become normal.