Author Question: A pediatric patient with air leak syndrome is being ventilated with PC-CMV. The settings are: rate = ... (Read 96 times)

bobbysung · **on:** Jul 16, 2018

A pediatric patient with air leak syndrome is being ventilated with PC-CMV. The settings are: rate = 20 breaths/min, TI = 0.8 sec, PIP = 30 cm H2O, PEEP = 8 cm H2O, FIO2 = 0.8, MAP = 14 cm H2O.

The patient is to be switched to HFOV. What MAP range is appropriate for this patient?
a. 8-10 cm H2O
b. 10-12 cm H2O
c. 12-14 cm H2O
d. 14-16 cm H2O

Question 2

A mechanically ventilated pediatric patient in the process of being weaned is switched to PC-IMV with PS. The respiratory therapist notes that every PS breath is being time cycled. The most likely cause of this is which of the following?

a. The PS setting is too high.
b. The flow cycle setting is too low.
c. This is the normal cycle for PS.
d. A large leak is present around the cuffless ET tube.

shoemake · **Reply #1 on:** Jul 16, 2018

Answer to Question 1

ANS: D
The initial MAP usually is set at the same level as or 2-3 cm H2O higher than that required for conventional ventilation.

Answer to Question 2

ANS: D
Failure to flow cycle can be due to leaks around the ET or tracheostomy tube. Time cycling is a backup for flow cycling.