A nurse is explaining to a client the correct method of using a metered-dose inhaler when self-administering a prescribed dose of medication. Which of the following is a feature of a metered-dose inhaler?
A) It is a battery-operated device that propels the medication.
B) It suspends finely powdered medication.
C) It is a canister that contains pressurized medication.
D) It mixes the medication with pure oxygen to create an inhalable mist.
C
Feedback:
A metered-dose inhaler has a canister that contains medication under pressure. MDI's are not battery powered and do not contain powdered medications. An MDI does not combine a medication with pure oxygen to create an inhalable mist; this describes a nebulizer.
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