Which of the following factors will decrease the FiO2 delivered ...

[Haya94]

Which of the following factors will decrease the FiO2 delivered by a low-flow O2 system? 1. Short inspiratory time 2. Fast rate of breathing 3. Lower O2 input 4. Large minute ventilation
 
  a. 2 and 4 only
  b. 1, 2, and 3 only
  c. 3 and 4 only
  d. 1, 2, 3, and 4

Question 2

Some of the major disadvantages of the transtracheal catheter are which of the following? 1. Infection 2. Mucus plugging 3. Excessive oxygen use 4. Lost tract or insertion opening
 
  a. 1 and 3 only
  b. 1, 2, and 4 only
  c. 3 and 4 only
  d. 2, 3, and 4 only

[dawsa925]

Answer to Question 1

ANS: D
The amount of air dilution depends on several patient and equipment variables. Table 41-4 sum-marizes these key variables and how they affect the FiO2 provided by low-flow systems

Answer to Question 2

ANS: B
Though there are several advantages to the transtracheal catheter, some of the major disad-vantages include infection, mucus plugging, and a lost insertion opening or tract.

[Haya94]

TYSM

[dantucker]

Excellent