Which of the following are beneficial effects of using a holding ...

[piesebel]

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]

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.

[piesebel]

TYSM

[CAPTAINAMERICA]

Thanks for the timely response, appreciate it