Low-flow oxygen delivery devices: I. vary in the concentration ...

[joesmith1212]

Low-flow oxygen delivery devices:
  I. vary in the concentration that they deliver
  II. deliver concentrations that are influenced by the patient's respiratory rate
  III. deliver concentrations that are influenced by the patient's respiratory pattern
  IV. deliver concentrations that are influenced by the patient's tidal volume
 A) I
  B) I and II
  C) I, II, and III
  D) I, II, III, and IV

Question 2

Most high-flow oxygen systems work using:
 A) the venturi principle
  B) Bernoulli's principle
  C) viscous shearing and vorticity
  D) none of the above

[trog]

Answer to Question 1

D

Answer to Question 2

C