Ed is a 68-year-old male who presents to the ER with complaints of nausea, vomiting

and diarrhea over the past 48 hours. He has not been able to tolerate any solid food or

liquids and states the nausea began after eating a burrito from a local fast-food

restaurant. His wife brought him to the ER because he had become weak and dizzy. She

also states that he has not urinated for at least 18-20 hours. A physical exam revealed

poor skin turgor and sunken appearance of the eyes. Bloodwork revealed an increase in

serum creatinine levels.