The client who has emphysema and recently experienced a stroke receives a prescription for a metered-dose inhaler with a spacer device. The client asks the nurse if using the spacer is necessary. Which information should the nurse provide?

A: While the spacer can reduce the risk of mouth infections, its primary purpose is to improve medication delivery to the lungs. B: The spacer does not slow down the medication’s entry into the lungs, but it does enhance its delivery. C: The spacer helps ensure that more medication reaches the lungs by holding the medication in the chamber before the client inhales it. This increases the effectiveness of the inhaler and reduces the risk of side effects, like oral thrush. D: The spacer does not slow down inhalation to allow the client to inhale the entire dose. Instead, it holds the medication to ensure more is inhaled.