Table 2.

Clinical and laboratory findings in acute versus chronic food protein-induced enterocolitis syndrome

Features	Acute	Chronic
Vomiting	Acute repetitive, projectile	Intermittent
Diarrhea	Acute, +/− blood	Chronic, +/− blood
Other clinical findings	Severe symptoms, hypothermia, pallor, lethargy and shock	Mild symptoms, weight loss, failure to thrive
Hematologic	Thrombocytosis, neutrophilia	Anemia, eosinophilia
Other laboratory tests	Metabolic acidosis, methemoglobinemia, elevated gastric juice lymphocytes	Hypoalbuminemia, metabolic acidosis, methemoglobinemia, stool reducing substances