What is a key instruction for a client using a metered dose inhaler (MDI)?

Using a metered dose inhaler (MDI) correctly is crucial for ensuring effective medication delivery to the lungs. Shaking the inhaler for 3 to 5 seconds before each use is an essential step because it helps to mix the medication with the propellant inside the canister. This mixing ensures that the correct dose of medication is delivered in each puff. If the inhaler is not shaken well, the medication can settle and not be adequately dispensed, leading to insufficient treatment of the respiratory condition.

Additionally, proper technique is vital for achieving optimal therapeutic outcomes, including correct inhalation and exhalation practices, but these steps are secondary to ensuring the medication is effectively delivered from the device itself. This preparation step enhances the medication’s effectiveness and supports the client in managing their respiratory symptoms more efficiently.