[coffeetime]

After my brother was diagnosed and I then tested positive my sister was tested. Her doctor ran 3 test and these are the results. Her dr. says she negative and no further follow up is needed. I had like 6 different types of test, my brother had even more. Is this enough to tell and if so is she definitely negative for celiac/gluten intolerance?

Igh negative
tTG 1 U/ml Ref 0-3
Immunoglobulin A Qn Serum 262 mg/dL Ref 70-400