You are dispatched to an extended care facility for a "sick person." On arrival, you speak with the staff who tells you that Ms. Johnson "just started acting differently and is slow to respond." Your assessment reveals that she is febrile and has vomited. When you move her to the gurney, you notice a stage 3 ulcer on her lower back that has a foul smell. Which of the following statements is most likely to be TRUE?
1) Ms. Johnson is experiencing a severe allergic reaction
2) Ms. Johnson has a urinary tract infection
3) Ms. Johnson has a stage 3 pressure ulcer
4) Ms. Johnson is dehydrated