Start oral ofloxacin plus ornidazole stat
Get levels of serum IgA anti-tTG
Prepare for a duodenal biopsy
Workup for abdominal Kochs
Ans. B. Get levels of serum IgA anti-tTG
Explanation: Children with autoimmune diseases like type 1 DM are at risk for developing other autoimmune illnesses like celiac disease, autoimmune thyroiditis, etc, and hence regular screening is recommended. Here the girl has symptoms consistent with celiac disease (long-standing history of loose stools, bloating, anemia, and short stature). So the best screening tool to diagnose it is a serum IgA anti-tTG level, and duodenal biopsy is usually performed for definitive diagnosis before starting on a gluten-free diet Abdominal Kocks and acute gastroenteritis are less likely to present this way.