What is the normal range for tTG IgA (Celiac)?

Typical adult ranges are shown on this page in U/mL. The reference range printed on your own lab report takes precedence, because ranges differ between laboratories and methods.

Labwise › Tests › Other tests

tTG IgA (Celiac)U/mL

Tissue transglutaminase IgA is the usual first blood test when celiac disease is being considered.

See your own tTG IgA (Celiac) on its range.

Labwise reads the PDF or a photo of your lab report on your iPhone and explains every test like this page does. Nothing leaves your phone.

What tTG IgA (Celiac) measures

Tissue transglutaminase IgA is the usual first blood test when celiac disease is being considered.

If your tTG IgA (Celiac) is low

Low is the expected state.

Worth asking your clinician: Nothing specific.

If your tTG IgA (Celiac) is high

tTG IgA above the range is commonly associated with celiac disease; total IgA must be typical for the test to be reliable.

Commonly associated with

Celiac disease
Other autoimmune conditions

Worth asking your clinician: Whether total IgA was checked and what follow-up is being considered.

Typical reference range

Group	Typical range
Adults	0 – 3 U/mL

Typical adult values used by many US labs. Your own report prints the range your lab validated for its method, and that range is the one that counts. Labwise always uses the printed range first.

If it is within range

Your tTG IgA is within the range printed by your lab.

Also listed as

tTG IgA, Tissue Transglutaminase Ab, IgA, t-Transglutaminase (tTG) IgA, Transglutaminase IgA, tTG-IgA

Related tests

This page is general information about what a laboratory test measures and what results outside a reference range are commonly associated with. It is not medical advice, does not diagnose any condition and does not replace your clinician. Discuss your results with your healthcare provider.