Which of the following pulmonary function devices directly ...

[appyboo]

Which of the following pulmonary function devices directly collect and measure gas volumes? 1. Water-sealed spirometer 2. Dry rolling-seal spirometer 3. Bellows spirometer 4. Pneumotachometer
 
  a. 3 and 4 only
  b. 1 and 2 only
  c. 1, 2, and 3 only
  d. 2, 3, and 4 only

Question 2

To what does the range or limit of a device's measuring ability refer?
 
  a. Capacity
  b. Accuracy
  c. Error
  d. Precision

[johnharpe]

Answer to Question 1

ANS: C
Flow measuring devices are commonly called pneumotachometers.

Answer to Question 2

ANS: A
The capacity of an instrument refers to the range or limits of how much it can measure.

[appyboo]

Excellent

[xiazhe]

Thanks for the timely response, appreciate it