A Diabetic Patient Is Admitted for Evaluation of Renal Function

A diabetic patient is admitted for evaluation of renal function because of recent fatigue, weakness, and elevated BUN and serum creatinine levels. While obtaining a nursing history, the nurse identifies an early symptom of renal insufficiency when the patient states,

A) "I get up several times every night to urinate."
B) "I wake up in the night feeling short of breath."
C) "My memory is not as good as it used to be."
D) "My mouth and throat are always dry and sore."