I agree with Nicole -- have them run a complete celiac antibody panel:
tTG - IgA and IgG
EMA - IgA
DGP - IgA and IgG
along with nutrient blood tests:
B1, B2, B6, B12, D, K, Iron, Ferritin, Copper and Zinc.
If he hasn't had a CBC (Complete Blood Count) or CMP (Complete Metabolic Panel) add those in as well.
Nicole is also right that the damage can be spotty and if the GI doesn't have specific Celiac biopsy experience the results are not as good as they can be -- that being said people can have a very experienced celiac specialist take the samples and still end up with negative pathology -- especially kids as the damage is often not as severe as folks that go years without diagnosis.
After all that is complete - I agree that it is time to remove gluten for at least 3-6 months to watch for symptom improvement.
Welcome to the forum....take a look at the "Newbie 101" thread and let us know if you have any questions
Undiagnosed Celiac Disease ~ 43 years
3/26/09 gluten-free - dignosed celiac - blood 3/3/09, biopsy 3/26/09, double DQ2 / single DQ8 positive
10/25/13 - MCAD
Health history since celiac diagnosis became too long -- moved to the "about me" section of my profile
My children and I all have multiple copies of the genes for Celiac Disease, along with large variety of symptoms/resolution gluten-free
Current tally from me, three kids and two grands: 4 diagnosed with Celiac Disease, 2 NCGS
Get PROPERLY tested BEFORE REMOVING GLUTEN.
ALWAYS independently research health related information found on internet forums/blogs.
"LTES" a Gem