What should be done if residue is found in the inhaler?

When residue is found in an inhaler, the appropriate action is to clean the mouthpiece and cap in warm water. This practice is essential because the inhaler is a medical device meant to deliver medication directly to the lungs, and any residue could indicate buildup of medication or other materials that may hinder its effectiveness. Proper cleaning ensures that the inhaler can function correctly and that the patient receives the intended dosage without obstruction.

Residue can affect the inhaler's performance and may lead to improper dosing, which can result in inadequate management of the patient's condition. Cleaning the inhaler ensures that it remains safe and effective for use. Using warm water helps to dissolve and dislodge any leftover medication residue, making it easier to maintain the inhaler's functionality.

The other options are not appropriate solutions to this issue. Discarding the inhaler may lead to unnecessary waste and could prevent the patient from accessing their medication. Leaving it as is could compromise its effectiveness and the patient's health. Storing it in the refrigerator is not recommended, as this could affect the medication's stability and efficacy. Therefore, cleaning the mouthpiece and cap is the correct action to take when residue is found.