Can blood tests be used to diagnose celiac disease?
Yes, blood tests can be useful in diagnosing celiac disease. People with celiac have elevated levels of certain antibodies – that is, proteins that target the body’s own cells or tissues. Blood tests can help determine if such antibodies are present. Antibodies include tissue transglutaminase, endomysial and giladin. Another blood test that should be checked along with antibody testing is for IgA deficiency – something that occurs more commonly with celiac disease and can affect the reliability of the antibody testing.
