At high flow rates, what do some bubble humidifiers produce? ...

[clippers!]

At high flow rates, what do some bubble humidifiers produce?
 
  a. Additional heat
  b. Microorganisms
  c. Low pressures
  d. Aerosol particles

Question 2

When checking an O2 delivery system that incorporates a bubble humidifier running at 6 L/min, you occlude the delivery tubing, and the humidifier pressure relief immediately pops off. What does this indicate?
 
  a. Malfunctioning humidifier
  b. Normal, leak-free system
  c. Malfunctioning flowmeter
  d. Leak in the delivery tubing

[joanwhite]

Answer to Question 1

ANS: D
At high flow rates, bubble humidifiers can produce aerosols.

Answer to Question 2

ANS: B
If the system is obstructed at or near the patient interface and the pop-off sounds, the system is leak free.

[clippers!]

Excellent

[Liamb2179]

Gracias!