Other blood tests look for different indicators, including fatty acid-binding protein (I-FABP) and certain genetic markers.
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When a celiac blood test is positive, further testing is necessary.
This article reviews tests done for celiac disease screening and what they reveal.
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Antibody Tests
There are four antibody tests for celiac disease.
The most sensitive screen for immunoglobulin A (IgA)the antibody most prominent in celiac.
The interaction between tTG and gliadins is complex.
Get our printable guide for your next doctor’s appointment to help you ask the right questions.
In response, the immune system produces defensive tTG antibodies that can be detected by the tTG test.
The EMA test is primarily used to detect IgA antibodies, although an IgG version is also available.
It is often used when a person tests negative for one or both of these tests.
Get our printable guide for your next doctor’s appointment to help you ask the right questions.
Elevations of I-FAGP in blood may be evidence of celiac disease even if antibody tests are inconclusive.
Urine samples can also be tested for I-FABP.
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