A newly diagnosed asthmatic is being instructed on proper use of a metered dose inhaler. The patient asks how he will know when the canister is empty, the nurse should respond:
The number of remaining doses will be on the inhaler
Explanation
•Newer inhalers often have a dose counter on them.
•Shaking the canister or counting each dose are not reliable methods.
•Placing the inhaler in water is not recommended due to medication integrity.