After placing a patient on a volume-cycled ventilator in the ...

[Starlight]

After placing a patient on a volume-cycled ventilator in the continuous mandatory ventilation assist-control mode, you note that 55 cm H2O pressure is required to deliver the preset VT of 950 ml.
 
  What high-pressure limit would you now set for this patient?
  a. 60 cm H2O
  b. 70 cm H2O
  c. 80 cm H2O
  d. 90 cm H2O

Question 2

In which of the following clinical situations is the incidence of auto-PEEP the greatest? 1. Patients with high respiratory rates 2. Intubated patients with obstructive lung disease 3. Patients with low minute volumes
 
  a. 1 and 2 only
  b. 1 and 3 only
  c. 2 and 3 only
  d. 1, 2, and 3

[underwood14]

Answer to Question 1

ANS: B
If the plateau pressure is less than 30 cm H2O, the high pressure limit can be adjusted to 10 to 20 cm H2O above the peak inspiratory pressure.

Answer to Question 2

ANS: A
PEEP has been advocated in small increments (2 to 3 cm H2O) for overcoming auto-PEEP, par-ticularly in the care of patients with obstructive lung disease.

[Starlight]

TYSM

[jordangronback]

Gracias!