What is a Meter Dose Inhaler (MDI) used for?

A Meter Dose Inhaler (MDI) is specifically designed to dispense premeasured doses of medication, allowing patients to receive a consistent and exact amount with each use. MDIs are commonly used for respiratory conditions such as asthma or chronic obstructive pulmonary disease (COPD), where it is essential to deliver medications directly to the lungs in a controlled manner. The device releases aerosolized medication that can be inhaled through the mouth, targeting the airways quickly and effectively.

The other options relate to different functions or types of devices. Providing moisture to the airways typically involves devices such as humidifiers, rather than an MDI. Delivering oxygen directly to a patient is the primary role of oxygen tanks or concentrators, not an inhaler. Lastly, nebulizers are the equipment used for nebulization, which involves converting liquid medication into mist, rather than storing it in an MDI. Thus, the use of an MDI focuses on the precise delivery of medication rather than moisture, oxygen, or nebulization.