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What factors would affect the MDI performance?

A. Ambient temperature
B. Propellant pressure
C. Valve design
D. All of the above

Answer :

Final answer:

Ambient temperature, propellant pressure, and valve design are all factors that can affect the performance of a Metered Dose Inhaler (MDI). Thus, the correct answer is option D) All of the above.

Explanation:

Factors that could affect the performance of a Metered Dose Inhaler (MDI) include ambient temperature, propellant pressure, and valve design. Ambient temperature can influence the vapor pressure of the propellant and thus affect the MDI output. Propellant pressure is critical as it drives the medication out of the inhaler, and variations in pressure can alter the dose delivered. The valve design is also significant since it controls the timing and size of the medication particles, which are crucial for optimal deposition in the lungs. Therefore, the correct answer to what factors would affect the MDI performance is D) All of the above.

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