How does noninvasive ventilation (NIV) benefit the patient with ...

[NClaborn]

How does noninvasive ventilation (NIV) benefit the patient with restrictive thoracic disease? 1. It rests the respiratory muscles. 2. It lowers the PaCO2. 3. It improves lung compliance. 4. It improves pulmonary function testing.
 
  a. 1, 2, and 3 only
  b. 2 and 4 only
  c. 1, 2, and 4 only
  d. 1, 3, and 4 only

Question 2

Which of the following are benefits of continuous positive airway pressure (CPAP) in postopera-tive major abdominal surgery? 1. Lower mortality 2. Lower intubation rate 3. Lower incidence of pneumonia 4. Lower rate of sepsis
 
  a. 1 and 3 only
  b. 1, 2, and 3 only
  c. 3 and 4 only
  d. 2, 3, and 4 only

[shaikhs]

Answer to Question 1

ANS: A
The first mechanism is the ability of NIV to rest the respiratory muscles. Second, NIV lowers the PaCO2, and the decrease is believed to reset the central ventilatory controller and establish a new baseline PaCO2. The third mechanism is the improvement in lung compliance, lung volume, and dead space that result from NIV.

Answer to Question 2

ANS: D
The CPAP group had a lower rate of intubation, pneumonia, overall infection, and sepsis.

[NClaborn]

Excellent

[kswal303]

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