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Author Question: In what areas of the lung are ventilation and perfusion best matched during spontaneous ventila-tion ... (Read 26 times)

formula1

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on: Jul 16, 2018
In what areas of the lung are ventilation and perfusion best matched during spontaneous ventila-tion in the supine position?
 
  a. Apices of the lungs
  b. Nondependent anterior lung areas
  c. Dependent posterior lung areas
  d. Basilar segments of lower lobes

Question 2

In a mechanically ventilated patient who is receiving lorazepam and succinylcholine, the dia-phragm moves in which of the following ways?
 
  a. A
  b. B
  c. C
  d. D


Awesome

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

ANS: C
The dependent lung areas receive a higher portion of ventilation and perfusion.

Answer to Question 2

ANS: D
With sedation and paralysis sufficient to block spontaneous breaths, positive pressure ventilation displaces the diaphragm to the nondependent regions of the lung.


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