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Author Question: The respiratory therapist in the ICU is called to assess a patient with ARDS. The patient is SOB. ... (Read 120 times)

anjilletteb

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on: Jul 16, 2018
The respiratory therapist in the ICU is called to assess a patient with ARDS. The patient is SOB. The x-ray shows white chest radiograph and the PAO2 is 60 mm Hg on an FiO2 of 100. Which of the following is indicated?
 
  a. Shunting
  b. Alveolar hyperventilation
  c. Decreased CO2
  d. Perfusion impairment

Question 2

Which of the following are causes of hypoxemia? 1. Ventilation/perfusion () mismatch 2. Alveolar hypoventilation 3. Diffusion impairment 4. Increased inspired O2
 
  a. 1 and 2 only
  b. 2 and 3 only
  c. 1, 2, and 3 only
  d. 1, 2, 3, and 4


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Ptupou85

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

ANS: A
Shunt is indicated by the following: shunt usually presents with a white radiograph. ARDS is a classic example of shunting. Shunt also does not respond to high level of supplemental oxygen.

Answer to Question 2

ANS: C
The following are causes of hypoxemia: mismatch (most common cause), shunt, alveolar hypoventilation, diffusion impairment, perfusion/diffusion impairment (rare), decreased inspired oxygen, and venous admixture.


anjilletteb

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Reply 2 on: Jul 16, 2018
Thanks for the timely response, appreciate it

bimper21

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Reply 3 on: Yesterday
Excellent

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