Celiac Disease

A 22-year-old woman fractures her wrist while playing volleyball. She reports a history of fatigue and intermittent oral ulcerations but no other symptoms. Radiography of her wrist shows osteopenia. Laboratory testing is notable for a hematocrit of 32% and low levels of ferritin and 25-hydroxyvitamin D. Although she reports no gastrointestinal symptoms, celiac disease is suspected. How should she be further evaluated and, if testing indicates celiac disease, how should her case be managed?