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Author Question: In normal individuals, approximately what fraction of the VT is wasted ventilation (does not ... (Read 39 times)

Coya19@aol.com

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on: Jul 16, 2018
In normal individuals, approximately what fraction of the VT is wasted ventilation (does not par-ticipate in gas exchange)?
 
  a. One-third of the tidal volume
  b. Two-thirds of the tidal volume
  c. One-half the of tidal volume
  d. One-quarter of the tidal volume

Question 2

In clinical practice measuring the physiologic dead space ventilation is achieved by using which formula?
 
  a. Bernoulli's equation
  b. Modified Bohr equation
  c. Modified Shunt equation
  d. Reynold's equation


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ApricotDream

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

ANS: A
In the healthy adult, physiologic dead space is approximately one-third of the tidal volume.

Answer to Question 2

ANS: B
The ratio is then calculated using a modified form of the Bohr equation, which assumes that there is no CO2 in inspired gas.


Coya19@aol.com

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

LVPMS

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Reply 3 on: Yesterday
Gracias!

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