MDI stands for which device in inhaler technology?

MDI stands for which device in inhaler technology?

• A. Metered-Dose Inhaler
• B. Manual Dose Inhaler
• C. Multi-Dose Inhaler
• D. Metered-Delivery Inhaler

Answer: (A)

Metered-Dose Inhaler describes a device that releases a specific, pre-measured amount of medication with each actuation. The defining idea is that one spray delivers a fixed dose, allowing predictable dosing when the patient inhales. The inhaler uses a metering mechanism to control the volume of drug expelled, often aided by a propellant to propel the dose as a spray. This contrasts with terms that aren’t standard or don’t emphasize the fixed-dose feature, such as manual dose inhaler or meter-delivery inhaler, which don’t convey the essential idea of a measured dose per actuation. In practice, patients often use spacers to improve deposition and coordination with inhalation, but the core concept remains the metered, reproducible dose per puff.

Metered-Dose Inhaler describes a device that releases a specific, pre-measured amount of medication with each actuation. The defining idea is that one spray delivers a fixed dose, allowing predictable dosing when the patient inhales. The inhaler uses a metering mechanism to control the volume of drug expelled, often aided by a propellant to propel the dose as a spray. This contrasts with terms that aren’t standard or don’t emphasize the fixed-dose feature, such as manual dose inhaler or meter-delivery inhaler, which don’t convey the essential idea of a measured dose per actuation. In practice, patients often use spacers to improve deposition and coordination with inhalation, but the core concept remains the metered, reproducible dose per puff.