A nurse is caring for a client who has a prescription for the glucocorticoid medication fluticasone propionate with an inhaler and a spacer. The client asks the nurse why a spacer is needed with the inhaler. Which of the following responses should the nurse make?

A. "You can inhale 5 or more puffs in 1 minute when using a spacer.": A spacer does not change the recommended number of puffs or the timing of administration. Exceeding prescribed puffs can increase the risk of side effects without improving therapeutic effect. B. "More medication is delivered to the lungs when you use a spacer": A spacer holds the aerosolized medication, allowing the patient to inhale slowly and deeply. This improves lung deposition of the medication, reduces oropharyngeal deposition, and increases overall effectiveness of the inhaled glucocorticoid. C. "By using a spacer, you eliminate the need for mouth rinsing after administration.": Mouth rinsing is still recommended even with a spacer to prevent local side effects such as oral candidiasis. The spacer reduces, but does not eliminate, oropharyngeal deposition. D. "By using a spacer, you can take the medication correctly without any spills": While a spacer may help with coordination, its primary purpose is not preventing spills but improving delivery of the medication to the lungs. Correct technique still requires proper use of the spacer.