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Author Question: Which of the following is true about reservoir cannulas? a. They reduce O2 use as much as 200. ... (Read 27 times)

Alainaaa8

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on: Jul 16, 2018
Which of the following is true about reservoir cannulas?
 
  a. They reduce O2 use as much as 200.
  b. During exercise, they do not reduce O2 use.
  c. Humidification is absolutely necessary.
  d. Nasal anatomy and breathing pattern can affect performance of the device.

Question 2

A cooperative and alert postoperative patient who is able to eat requires a continuous but low FiO2. Precise FiO2 concentrations are not needed. Which of the following devices would best achieve this end?
 
  a. Simple O2 mask
  b. Air-entrainment mask
  c. Nasal cannula
  d. Nonrebreathing mask


morrie123456

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Reply #1 on: Jul 16, 2018
Answer to Question 1

ANS: D
Although flow savings are fairly predictable, factors such as nasal anatomy and breathing pattern can affect the performance of the device.

Answer to Question 2

ANS: C
Table 41-3 outlines the FiO2 range, FiO2 stability, advantages, disadvantages, and best use of oxygen delivery devices. Based on these guidelines, the nasal cannula appears most suitable for this patient.


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