Author Question: Which of the following factors will decrease the FiO2 delivered by a low-flow O2 system? 1. Short ... (Read 51 times)

Haya94 · **on:** Jul 16, 2018

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 · **Reply #1 on:** Jul 16, 2018

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.