Keyword: negative blood test

Is it possible to have a negative blood test, but a positive biopsy?

While rare, it is possible to have a negative blood test and still have celiac disease. tTG sensitivity is approximately 98%, which means that 2% of all celiacs may have a normal tTG level. Sometimes tTG antibodies are not produced enough to show up in the blood stream and can only be detected in the… Read more »

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How do you get a doctor to perform a biopsy when the blood test is negative?

Guidelines may or may not be followed; it all depends on the physician’s judgment in each individual case. Most doctors won’t do a biopsy with a negative test because the test is about 98% accurate. However, by definition, 2% of those with celiac disease do have a negative test, so experienced physicians must handle each… Read more »

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