The Celiac Test
Celiac signs and symptoms often come and go. A person may have celiac, have no current noticable symptoms ("silent symptoms"), and still have harmful autoimmune activity brewing.
Physician knowledge of celiac is generally severely limited. In 97% of celiac, doctors have not diagnosed the condition. When it is diagnosed, most doctors have no idea what to do, aside from mention of the gluten-free diet.
If you ask your doctor to test you and your request is refused for any reason, find another doctor. The test is a simple blood test, and should be part of every thorough physical check-up.
If you have had previously negative results and have any symptoms, you should request that the test be repeated. There is never a good reason not to include this test with other blood work to investigate health issues.
Get tested if you have a family member with celiac or Related Health conditions. If prescription or over-the-counter items medication is taken to treat a chronic condition, you should be tested.
Test & Test Results
A positive celiac test result is confirmation of presence of celiac disease.
Some Negative test results are really a "maybe". It is possible to have celiac and have a negative result multiple times before the antibodies level registers a positive test result.
This article offers a fascinating explanation about the antibodies and testing: About Blood Tests.