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Author Question: ________ is used to measure lung-volume changes by collecting exhaled gas into an expandable ... (Read 66 times)

ss2343

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on: Jul 16, 2018
________ is used to measure lung-volume changes by collecting exhaled gas into an expandable wedge-shaped device.
 
  a. A bellows spirome-ter c. A vortex pneumo-tachometer
  b. A water-sealed spi-rometer d. A screen pneumo-tachometer

Question 2

Which of the following is true concerning the Stead-Wells spirometer?
 
  a. Counterweights are necessary.
  b. The pen and bell move in opposite direc-tions.
  c. The pen recorder is attached directly to the bell.
  d. On exhalation, the bell and pen move downward.


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frre432

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

ANS: A
The expandable wedge-shaped device is a bellows, making this a bellows spirometer.

Answer to Question 2

ANS: C
The pen recorder for the Stead-Wells spirometer is attached directly to the bell, so as the bell moves upward during exhalation, the pen also moves upward.


ss2343

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Reply 2 on: Jul 16, 2018
YES! Correct, THANKS for helping me on my review

DylanD1323

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Reply 3 on: Yesterday
Wow, this really help

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