i think Nicole meant to say she needs to stay on gluten if they decide to do a biopsy. Make sure your daughter stays on gluten until all testing is complete!
She may need to stay gluten-free after testing in case there is a follow-up endoscopic biopsy.
here's what I usually suggest testing wise
Comprehensive Celiac Panel:
Total iga serum-this is a control test to make sure you make enough iga to validate the other testing
check out page 12 in this report for testing information:
Complete Blood Count (CBC)
Complete Metabolic Profile (CMP)
Vitamin A, D, E, K
Good info from University of Chicago Celiac Center: