Final answer:
Orthostatic hypotension is a finding that indicates dehydration in a client with fever and diarrhea.
Step-by-step explanation:
The nurse should be looking for signs of dehydration in the client. One of the findings that would indicate dehydration is orthostatic hypotension, which refers to a drop in blood pressure when the client stands up from a sitting or lying position. This can be due to decreased blood volume as a result of dehydration. Other signs of dehydration may include a marked decrease in urination, a very dry mouth and throat, feeling dizzy when standing up, and an increase in heart rate.