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Author Question: When the gas pressure in the right chamber of a Bird Mark 7 exceeds the magnetic attraction of the ... (Read 199 times)

krzymel

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on: Jul 16, 2018
When the gas pressure in the right chamber of a Bird Mark 7 exceeds the magnetic attraction of the right magnet, which of the following occurs?
 
  a. Exhalation ends. c. The diaphragm moves right.
  b. Inspiration begins. d. The clutch plate is forced left.

Question 2

In the air-mix setting, the flow and pressure waveforms that can be produced by the Bird Mark 7 include:
 
  a. constant-flow wave (square) and ascend-ing-pressure wave.
  b. ascending-flow wave and descend-ing-pressure wave.
  c. descending-flow wave and ascend-ing-pressure wave.
  d. sine-flow wave and ascending-pressure wave.


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macagnavarro

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

ANS: C
Toward the end of inspiration, the pressure in the pressure chamber exceeds the magnetic attrac-tion of the right magnet. The diaphragm, clutch plate, and ceramic switch are then forced to the left, occluding gas flow into the ventilator and starting exhalation.

Answer to Question 2

ANS: C
In the air-mix position, the Venturi is activated, producing a descending-flow pattern and an ir-regular pressure waveform that ranges from ascending to rectangular, depending on the compli-ance and resistance of the patient's respiratory system.


krzymel

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Reply 2 on: Jul 16, 2018
Great answer, keep it coming :)

Chelseyj.hasty

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Reply 3 on: Yesterday
Wow, this really help

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