After Providing Instructions to a Client with Newly Diagnosed COPD

After providing instructions to a client with newly diagnosed COPD who is learning to take a steroid medication by inhaler, the nurse would determine that proper technique has been learned when the client

A) breathes out forcefully with an open mouth.
B) gently rolls the canister in the hands before use.
C) holds the breath for 5 to 10 seconds after inhalation.
D) starts to discontinue the medication once manifestations subside.