Assess the following data obtained from the spontaneous breathing ...

[Shelles]

Assess the following data obtained from the spontaneous breathing trials of four patients. Which patient is most likely to be weaned successfully at this time?
 
  a. Spontaneous rate = 32 breaths/min, VT = 375 mL, PaO2 = 98 mm Hg, FIO2 = 0.4
  b. Spontaneous rate = 15 breaths/min, VT = 450 mL, PaO2 = 87 mm Hg, FIO2 = 0.6
  c. Spontaneous rate = 15 breaths/min, VT = 650 mL, PaO2 = 91 mm Hg, FIO2 = 0.28
  d. Spontaneous rate = 12 breaths/min, VT = 680 mL, PaO2 = 79 mm Hg, FIO2 = 0.5

Question 2

What ends inspiration in pressure support ventilation?
 
  a. Time
  b. Flow
  c. Volume
  d. Pressure

[jharrington11]

Answer to Question 1

ANS: C
Calculate the f/VT and PaO2/FIO2 for each patient. The patient with acceptable criteria has an f/VT of 23 and a PaO2/FIO2 of 325.

Answer to Question 2

ANS: B
Each pressure support breath is flow cycled.

[Shelles]

Thank you

[jharrington11]

No problemo