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Author Question: What is the best measure of the efficiency of gas exchange in the lung? a. PaCO2 b. VDS/VT c. ... (Read 11 times)

silviawilliams41

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on: Jul 16, 2018
What is the best measure of the efficiency of gas exchange in the lung?
 
  a. PaCO2
  b. VDS/VT
  c. End-tidal PCO2
  d. PaCO2/PETCO2

Question 2

What is the normal range for P(Aa)O2 in a healthy 30-year-old person breathing room air?
 
  a. 0 to 10 mm Hg
  b. 5 to 15 mm Hg
  c. 10 to 20 mm Hg
  d. Cannot predict


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jlaineee

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

ANS: B
The dead space-tidal volume ratio (VD/VT) is a measure of the efficiency of gas exchange.

Answer to Question 2

ANS: B
For example, a healthy person has a P(Aa)O2 of 5 to 15 mm Hg while breathing room air.


silviawilliams41

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Reply 2 on: Jul 16, 2018
Wow, this really help

LVPMS

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Reply 3 on: Yesterday
YES! Correct, THANKS for helping me on my review

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