An advantage to using a device that provides continuous positive ...

[tiara099]

An advantage to using a device that provides continuous positive airway pressure for respiratory disorders is that:
 
  a. Oxygen concentrations can be closely controlled in patients with COPD
  b. It can replace intubation in a patient who has lost the ability to maintain his airway
  c. Lower liter flows of oxygen are required when using these devices
  d. These devices keep the alveoli inflated resulting in improved lung efficiency

Question 2

Describe the process of exhalation (in other words, describe the changes in the body that result in exhalation).
 
  What will be an ideal response?

[shaikhs]

Answer to Question 1

d
Rationale: a. This answer best describes a venture mask.
b. Intubation is the best choice when a patient can not protect or maintain their airway.
c. Incorrect.
d. Correct.

Answer to Question 2

Exhalation begins when the diaphragm relaxes, resuming its resting dome shape. The elastic tissue of the lungs also recoils. Together, these actions make the chest cavity smaller. The pressure inside the chest cavity rises, and air is forced out.

[tiara099]

Excellent

[bassamabas]

Gracias!