A patient receiving control-mode continuous mandatory ventilation ...

[arivle123]

A patient receiving control-mode continuous mandatory ventilation has the following ABGs on an FiO2 of 0.5: pH = 7.23; PCO2 = 61 mm Hg; HCO3 = 26 mm Hg. The current minute ventila-tion (VE) is 9.2 L/min. What new VE would you recommend?
 
  a. 10.6 L/min
  b. 14.0 L/min
  c. 12.4 L/min
  d. 5.8 L/min

Question 2

A patient receiving control-mode continuous mandatory ventilation has the following ABGs on an FiO2 of 0.4: pH = 7.51; PCO2 = 30 mm Hg; HCO3 = 25 mm Hg.
 
  Her current minute ventilation (VE) is 7.9 L/min. What new VE would you recommend?
  a. 9.0 L/min
  b. 6.7 L/min
  c. 7.5 L/min
  d. 5.9 L/min

[anyusername12131]

Answer to Question 1

ANS: B

Answer to Question 2

ANS: D
Box 48-20 gives an example of the effect of a change in A on PaCO2.

[arivle123]

Thanks for the timely response, appreciate it

[milbourne11]

TYSM