Author Question: Which of the following are beneficial effects of using a holding chamber with a metered dose inhaler ... (Read 59 times)

piesebel · **on:** Jul 16, 2018

Which of the following are beneficial effects of using a holding chamber with a metered dose inhaler (MDI)?

1. Reduction in oropharyngeal aerosol deposition
2. Decrease in need for hand-breath coordination
3. Elimination of medication waste
a. 1 and 2 only
b. 1 and 3 only
c. 2 and 3 only
d. 1, 2, and 3

Question 2

The key difference between a metered dose inhaler (MDI) holding chamber and a spacer is that the holding chamber incorporates which of the following?

a. Larger enclosed space
b. One-way inspiratory valve
c. Heated chamber
d. Series of baffles

meow1234 · **Reply #1 on:** Jul 16, 2018

Answer to Question 1

ANS: A
Spacers and valved holding chambers are pressurized MDI accessory devices designed to reduce both oropharyngeal deposition and the need for hand-breath coordination.

Answer to Question 2

ANS: B
A spacer is a simple valveless extension device that adds distance between the pMDI outlet and the patient's mouth. See Box 39-2.