Author Question: The most important factor to affect the degree of resistance in the airways is which of the ... (Read 55 times)

s.tung · **on:** Jul 16, 2018

The most important factor to affect the degree of resistance in the airways is which of the fol-lowing?

a. Flow rate of the gas
b. Viscosity of the gas
c. Length of the airways
d. Diameter of the airways

Question 2

What is the trigger variable for the A breath shown in the figure below?

a. Flow
b. Time
c. Pressure
d. Volume

stanleka1 · **Reply #1 on:** Jul 16, 2018

Answer to Question 1

ANS: D
The most important factor affecting the degree of airway resistance is the diameter of the air-ways. The mathematical law that determines this fact is Poiseuille's law. A large diameter airway will have low airway resistance and there will be a greater flow of gas. A small diameter airway will have high resistance and there will be a lower flow.

Answer to Question 2

ANS: B
There is no patient trigger noted; therefore, the trigger in this case is time.