My 13y/o daughter lab results r high ttg IgA 66 endomysial scr IgA positive and endomysial ab titer high at 1:40 what does all this mean? Dr r/o celiac

Likely. Does she have any symptoms (gastrointestinal, weight loss, anemia etc)? If she does, she should stay off gluten. If no symptoms, then it is more difficult to have definite answer although ideally she should avoid all gluten products.