Case 21.2

What is your differential diagnosis? (click all that apply)
Very early onset Inflammatory Bowel disease
Infectious enteritis
Eosinophilic colitis
Hemolytic uremic syndrome (HUS)
Irritable bowel syndrome
IBS would not be expected to cause bloody stools or poor weight gain
Autoimmune enteropathy
Which diagnostic studies would you consider next? (click all that apply)
Complete blood count, metabolic panel, CRP, ESR
Fecal calprotectin
Stool Infectious Testing
Ig A, Tissue transglutaminase Ig A
Food allergy panel