A nurse is reinforcing teaching with a client who has diabetes mellitus about a 24-hr creatinine clearance test. Which of the following statements should the nurse include in the teaching?

"You should record your blood glucose level each time you void."

"You can begin collection of urine after discarding your first morning void."

"You should eat a protein-rich diet during the collection period."

"You can cleanse your perineal area with an antiseptic towel each time before you void."