Difficulty: Medium
Average Score: 82%
Full-length
The nurse is teaching a client newly diagnosed with asthma how to use the metered-dose inhaler (MDI). The client asks when they will know the canister is empty. The best response is
Correct answer
A
Rationale
Dropping the canister into a bowl of water assesses the amount of medication remaining in a metered-dose inhaler. The client should obtain a refill when the inhaler rises to the surface and begins to tip over.