Use of the Drger E-4 nebulizer in the Neo setting will do which ...

[Bob-Dole]

Use of the Drger E-4 nebulizer in the Neo setting will do which of the following?
 
  a. Increase the base flow from 6 L/min to 11 L/min
  b. Cause a 6 decrease in the oxygen con-centration in any mode
  c. Divert 6 L/min away from the patient cir-cuit to the nebulizer
  d. Decrease oxygen concentration signifi-cantly with rates greater than 12 breaths/min

Question 2

Which of the following statements concerning the use of AutoFlow for neonates on the Drger E-4 is true?
 
  a. AutoFlow is an adult mode and should not be used with neonates.
  b. The ventilator's internal flow sensor is al-ways used with neonates on AutoFlow.
  c. Two test breaths determine the appropriate pressure to deliver volume in AutoFlow.
  d. In AutoFlow, the highest pressure to de-liver the volume is the high-pressure limit setting.

[ecox1012]

Answer to Question 1

ANS: D
Use of the Drger E-4 nebulizer in the Neo setting increases the base flow from 6 L/min to 9 L/min. Delivered oxygen concentrations decrease slightly from the level set. The amount of de-crease is less than 4 at breath rates greater than 12 per minute. When operating at mandatory breath rates of less than 12 per minute, the nebulizer should not be used because of the potential-ly significant drop in oxygen concentration.

Answer to Question 2

ANS: C
When the flow sensor is attached during AutoFlow in neonates, the unit provides two test breaths, first with a pressure of 5 cm H2O and then with a pressure equal to 75 of that required to deliver the set volume.