The Nurse Teaches the Client About the Use of a Metered-Dose

The nurse teaches the client about the use of a metered-dose inhaler (MDI) and spacer. The nurse evaluates that additional teaching is required when the client makes which statement?

A) "I need to follow the instructions about using the metered-dose inhaler (MDI) ."
B) "I need to rinse my mouth each time after using the metered-dose inhaler (MDI) ."
C) "I need to drink a lot of fluids while I am using the metered-dose inhaler (MDI) ."
D) "I should keep the spacer moist between uses by storing it in a plastic zip bag."