Film Array Gastrointestinal Panel Compared to Usual Care for ED Evaluation of Infectious Diarrhea

Inclusion Criteria: * Presumed infectious diarrhea (3 or more loose stools in past 24 hours) * Must have one of the 3 following features or symptoms lasting more than 7 days. 1. Symptoms greater than 24 hours; 2. Dehydration (defined as the need for intravenous fluid or per clinician's judgement ((based on the general appearance and alertness of the patient, the pulse, the blood pressure, the presence or absence of postural hypotension, the mucous membranes and tears, sunken eyes, skin turgor, capillary refill, and jugular venous pressure.)) 3. Inflammation (defined as fever (greater than 100.1), blood in stool per patient, DRE, or tenesmus.) Exclusion Criteria: * Chronic Symptoms (\>14 days) * Inability to Follow- Up (i.e. no telephone) * Prisoner * Likely non-infectious cause of diarrhea (Crohn's disease, radiation colitis, irritable bowel syndrome, or celiac disease) * Confirmed C. Diff Diarrhea * Unable to provide written consent * Non- English speaker