What is the normal value of the ratio of O2 consumption (O2) to ...

[cabate]

What is the normal value of the ratio of O2 consumption (O2) to CO2 production (CO2)?
 
  A. 1.5
  B. 1.0
  C. 0.8
  D. 0.6

Question 2

The graphic shown below depicts a pressure-time scalar indicating the mechanical loads during a ventilator-controlled breath. Which of the following components of pressure time products is represented by label d?
 
  A. auto-PEEP
  B. chest wall compliance
  C. lung compliance
  D. airway resistance

[Sammyo]

Answer to Question 1

ANS: C
A. Incorrect response: See explanation C.
B. Incorrect response: See explanation C.
C. Correct response: Normal O2 consumption (O2) is approximately 250 ml/minute, and normal CO2 production (CO2) is about 200 ml/minute. The ratio of O2/ CO2 is 0.8, or 200 ml/min
250 ml/min.
D. Incorrect response: See explanation C.

Answer to Question 2

ANS: A
A. Correct response: Auto-PEEP is represented by label d.
B. Incorrect response: Chest wall compliance is labeled c.
C. Incorrect response: Lung compliance is depicted as label b.
D. Incorrect response: Airway resistance is shown as label a.