To confirm proper operation of an O2 blending system, what should ...

[tiffannnnyyyyyy]

To confirm proper operation of an O2 blending system, what should you do? 1. Test low-pressure alarms and bypass systems. 2. Analyze FiO2 at 0.21, 1.00, and prescribed level. 3. Confirm air and O2 inlet pressures.
 
  a. 1 and 2 only
  b. 2 and 3 only
  c. 1 and 3 only
  d. 1, 2, and 3

Question 2

A physician orders 40 O2 through an air-entrainment nebulizer for a patient with a minute vol-ume of 12 L/min. What is the minimum nebulizer input flow required to ensure the prescribed FiO2?
 
  a. 8 L/min
  b. 10 L/min
  c. 12 L/min
  d. 14 L/min

[lauravaras]

Answer to Question 1

ANS: D
To confirm proper operation, the respiratory therapist always should conduct an operational check of any blender before using it on a patient (Box 41-3).

Answer to Question 2

ANS: B
For example, the total output flow of an air-entrainment nebulizer set to deliver 40 O2 ranges from 48 to 60 L/min.