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Author Question: Which of the following best describes the difference between mismatch and shunt when sup-plemental ... (Read 44 times)

biggirl4568

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Which of the following best describes the difference between mismatch and shunt when sup-plemental oxygen is administered?
 
  a. Both will respond equally well.
  b. mismatch will respond well but shunt will not.
  c. mismatch will not respond but shunt will respond well.
  d. Neither will respond to the administration of supplemental oxygen.

Question 2

A diagnosis of respiratory failure can be made if which of the following are present?
 
  1. PaO2 55 mm Hg, FiO2 0.21, PB 760 mm Hg
  2. PaCO2 57 mm Hg, FiO2 0.21, PB 760 mm Hg
  3. P(Aa)O2 45 mm Hg, FiO2 1.0, PB 760 mm Hg
  4. PaO2/FiO2 400, PB 750 mm Hg
  a. 1 and 2 only
  b. 1, 3, and 4 only
  c. 3 and 4 only
  d. 2, 3, and 4 only



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lorealeza

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Answer to Question 1

ANS: B
mismatch will respond to supplemental oxygen.

Answer to Question 2

ANS: A
Criteria for respiratory failure based on arterial blood gases have been established by Campbell and generally define failure as a PaO2 (arterial partial pressure of oxygen) less than 60 mm Hg and/or a PaCO2 (alveolar partial pressure of carbon dioxide) greater than 50 mm Hg in otherwise healthy individuals breathing room air at sea level.




biggirl4568

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Reply 2 on: Jul 16, 2018
Excellent


scottmt

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Reply 3 on: Yesterday
Great answer, keep it coming :)

 

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