Which of the following device-related factors have a major effect on pressurized metered dose inhaler (MDI) delivery of aerosolized drugs during mechanical ventilation?
1) MDI propellant formula
2) Type of spacer or adapter used
3) Position of spacer in circuit
4) Timing of MDI actuation

Question

Quizplus · Accepted Answer

The type of spacer or adapter used, the position of the spacer in the circuit, and the timing of MDI actuation significantly affect the delivery of aerosolized drugs from pressurized metered dose inhalers during mechanical ventilation.

Which of the Following Device-Related Factors Have a Major Effect