What is the most common lung volume measured during spirometry? ...

[james0929]

What is the most common lung volume measured during spirometry?
 
  a. Tidal volume
  b. Vital capacity
  c. Total lung capacity
  d. Expiratory reserve volume

Question 2

Which of the following techniques are used to measure residual volume? 1. Helium dilution 2. Body plethysmography 3. Nitrogen washout 4. Flow-volume loops
 
  a. 2 and 4 only
  b. 1, 2, and 3 only
  c. 1, 2, 3, and 4
  d. 1, 3, and 4 only

[xiazhe]

Answer to Question 1

ANS: B
The vital capacity is the most commonly measured lung volume.

Answer to Question 2

ANS: B
There are three indirect techniques to measure residual volume and FRC. They are helium dilu-tion, nitrogen washout, and body plethysmography.