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

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

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

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

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