A 25 year old female comes into the family practice clinic complaining of smelly diarrhea. She describes the accompanying abdominal pain as "crampy." She has just returned from a month long service project in Vietnam. She says her stools are bloody and loose.
Labs: Stool sample for an O&P (ova and parasite) examination reveals motile organisms in stool. Cysts in stool sample contain 4 nuclei.