Which action indicates correct usage of a metered-dose inhaler for corticosteroid administration?

Using a metered-dose inhaler (MDI) properly is crucial for effective medication delivery. Holding the inhaler upright ensures that the aerosolized medication is released effectively into the airways. When the inhaler is positioned correctly, it allows for optimal coordination between the activation of the inhaler and inhalation, which enhances drug deposition in the lungs.

Rinsing the mouth with water after corticosteroid administration is an important step to minimize potential side effects of the medication, particularly oral thrush and dysphonia. Corticosteroids can deposit in the mouth and throat, leading to local fungal infections. Therefore, rinsing helps clear any residual medication and reduces irritation.

The practice of waiting five minutes between puffs is generally applicable to certain medications where multiple doses are prescribed, but it is not a specific requirement for corticosteroids. In many cases, if a patient is using a corticosteroid alone in an MDI, they may not need to wait unless otherwise directed by their healthcare provider.

By combining both the correct upright position of the inhaler and the mouth rinsing after use, the actions highlight important aspects of proper inhalation technique and post-administration care that contribute to effective treatment and prevention of side effects.