Author Question: Which one or more of the following devices are used in combination with metered dose inhaler (MDI) ... (Read 82 times)

bobbysung · **on:** Jul 16, 2018

Which one or more of the following devices are used in combination with metered dose inhaler (MDI) therapy to reduce the need for hand-breathing coordination and oropharyngeal impaction of aerosolized drugs?

1. Reservoir devices
2. One-way spacers
3. Valved holding chambers
4. Drying chambers
a. 1 and 3 only
b. 1, 2, and 3 only
c. 3 and 4 only
d. 2, 3, and 4 only

Question 2

Which of the following are advantages for the treatment of the respiratory tract with inhaled aerosols?

1. Doses are usually smaller.
2. Onset of drug action is rapid.
3. Delivered dose is consistent with each administration.
4. Systemic side effects are often fewer and less severe.
a. 1 and 3 only
b. 1, 2, and 4 only
c. 4 only
d. 2 and 4 only

lindahyatt42 · **Reply #1 on:** Jul 16, 2018

Answer to Question 1

ANS: B
Reservoir devices, including both holding chambers with one-way inspiratory valves and simple, nonvalved spacer devices, are often added to an MDI to reduce the need for complex hand-breathing coordination and to reduce oropharyngeal impaction of the aerosol drug.

Answer to Question 2

ANS: B
The advantages for treatment of the respiratory tract with inhaled aerosols are as follows:
Aerosol doses are usually smaller than doses for systemic administration.
Onset of drug action is rapid.
Delivery is targeted to the organ requiring treatment.
Systemic side effects are often fewer and less severe.