Low-flow O2 delivery systems used in respiratory care include ...

[corkyiscool3328]

Low-flow O2 delivery systems used in respiratory care include which of the following? 1. Nasal O2 cannula 2. Nasal O2 catheter 3. Air-entrainment mask 4. Transtracheal catheter
 
  a. 1 and 3 only
  b. 1, 2, and 4 only
  c. 3 and 4 only
  d. 2, 3, and 4 only

Question 2

A patient with chronic hypercapnia placed on an FiO2 of 0.6 starts hypoventilating. What is a possible cause of this phenomenon?
 
  a. Decreased cardiac output
  b. O2 toxicity
  c. O2-induced hypoventilation
  d. Absorption atelectasis

[Sophiapenny]

Answer to Question 1

ANS: B
Low-flow O2 delivery systems include the nasal cannula, the nasal catheter, and the transtracheal catheter.

Answer to Question 2

ANS: C
When breathing moderate to high O2 concentrations, COPD patients with chronic hypercapnia may tend to ventilate less.