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?

Instruct the client to close their mouth tightly around the mouthpiece of the inhaler. This ensures that the medication is delivered directly into the lungs and minimizes the amount of medication escaping into the surrounding environment.

The correct technique for using a metered-dose inhaler does not involve tilting the head forward.

Instead, the client should keep their head in a neutral position while using the inhaler. After inhaling the medication from the inhaler, it is recommended to hold the breath for about 10 seconds before exhaling. This allows the medication to be fully deposited in the lungs and absorbed effectively.

The proper technique for using an albuterol metered-dose inhaler involves taking a slow and deep breath. The client should depress the canister once at the beginning of inhalation and continue to inhale slowly and deeply to ensure adequate medication delivery.

It is important for the nurse to demonstrate and observe the client's technique while using the inhaler to ensure proper administration.

A 24-hour creatinine clearance test is used to evaluate how well the kidneys are functioning by measuring the amount of creatinine in the blood and urine over a 24-hour period. During the test, the client is asked to discard their first-morning void and then collect all urine for the next 24 hours.
Option A is incorrect because a protein-rich diet can affect the creatinine levels in the urine, which can result in inaccurate test results. Therefore, the nurse should advise the client to avoid a protein-rich diet during the collection period.
Option B is incorrect because blood glucose levels are not relevant to a 24-hour creatinine clearance test. Therefore, the nurse should not ask the client to record their blood glucose level each time they void.
Option D is incorrect because using an antiseptic towel to cleanse the perineal area can also affect the test results by introducing contaminants into the urine sample. Therefore, the nurse should advise the client to cleanse the perineal area with soap and water or an alcohol wipe.