What are some disadvantages of O2 concentrators for home O2 ...

[sjones]

What are some disadvantages of O2 concentrators for home O2 therapy?
 
  1. FiO2 values decrease with increased flow.
  2. Backup O2 is required in case of electrical failure.
  3. They cannot operate high-pressure devices.
  4. Loss of electricity disrupts delivery.
  a. 2 and 4 only
  b. 1, 2, and 3 only
  c. 2 and 3 only
  d. 1, 2, 3, and 4

Question 2

What electrically powered device can separate the O2 in room air from N2, thereby providing an enriched flow of O2 for therapeutic use?
 
  a. O2 concentrator
  b. O2-conserving device
  c. Joule-Thompson enricher
  d. Molecular impactor

[joewallace]

Answer to Question 1

ANS: D
Table 56-3 summarizes the major advantages and disadvantages of each system.

Answer to Question 2

ANS: A
An O2 concentrator is an electrically powered device that physically separates the O2 in room air from N2.