Assignment task:
HPI: Patient is a 15 month old who presents with ? diarrhea for the past week, poor intake, and vomiting x's 1 today. History is provided by a parent. Capillary refill in right hand <2 seconds.
Onset: Onset: ~1-week diarrhea; 2 days decreased urine output; today vomiting, poor intake, ear ache, cough
Location: ear ache, unspecified ear
Duration: ~1 week
What could the differential diagnosis be made based on the above case?