Gluten shows up in Anesthesia, anti- inflammatory meds, pain meds. That's from a real experience because I had dental surgery and Dentist didn't know. I couldn't hold food or water down for over 24 hours.  Eventually it wore off but was scary. The point made that because trace amounts of gluten is deemed acceptable, the impact to some of us can be huge when you take foods or meds with these trace amounts that become cumulative. 

This may help you get off onto the right foot:  There usually is quite a learning curve involved in attaining to consistency in gluten free eating. Attaining a "low gluten" diet is easy because you simply cut out the obvious things like bread and pasta. It's the places gluten is found in the food industry that you would never expect that trips up newbies and also the whole area of cross contamination, which involves things that would be naturally gluten free but come into contact with gluten things and thereby pick up gluten incidentally. So, you order a fried egg and sausage but forget that it will be cooked on the same grill that was used to cook someone else's French toast. Or you go to a spaghetti place and order gluten free pasta but they cook it in the same pot with wheat noodles. That kind of thing. Or you buy cough drops and find out that after sucking on several of them and getting an upset tummy that they contained wheat. Wheat can be used as filler and a texturing agent in pills and meds. And would you ever have thought that soy sauce and Campbells tomato soup would have wheat in them. Read the labels sometime.   

@trents, this was a first for him.  He has been suffering from constipation and abdominal pain for years.  I finally got the doc to test for Celiac since I heard about it from another friend.  Just got his lab results back!  This is all new to me.  I have a lot of learning to do!

Welcome to the forum, @kim91380! A little education perhaps is in order here. I hope you aren't offended. The tests don't measure blood levels of gluten but the blood levels of the antibodies produced by the immune system as it attacks the gluten that comes in contact with the cells that line the small bowel. So, as we eliminate gluten from the diet, the levels of the antibodies begins to drop. New antibody production ceases very quickly upon discontinuing gluten consumption but it can take awhile for the body to eliminate those already in circulation, probably several weeks to see much of a noticeable drop. And unless all gluten has been removed from the diet, the antibody drop will be slower and may not reach normal levels. Do the test scores you refer to reflect a new diagnosis of celiac disease or is this repeat testing from an existing diagnosis and if the latter, how long ago was the initial diagnosis made?

My 8-year-old son just got his blood results back and his TTG level is 20.3.  In general, how long does it take to get the gluten out of their system completely?