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Author Question: In a spring-loaded bellows volume-delivery device, the amount of pressure is determined by the: ... (Read 65 times)

nautica902

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on: Jul 16, 2018
In a spring-loaded bellows volume-delivery device, the amount of pressure is determined by the:
 
  a. location of the bellows.
  b. volume setting on the ventilator.
  c. tightness of the spring.
  d. electrical power provided to the spring.

Question 2

The volume displacement device that creates a sinusoidal flow waveform is which of the follow-ing?
 
  a. Rotary drive piston
  b. Linear drive piston
  c. Spring-loaded bellows
  d. Proportional solenoid


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akudia

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

ANS: C
In a spring-loaded bellows model, an adjustable spring atop a bellows applies a force per unit ar-ea, or pressure (P = Force/area). Tightening of the spring creates greater force and therefore greater pressure. The bellows contains pre-blended gas (air and oxygen), which is administered to the patient.

Answer to Question 2

ANS: A
The rotary drive piston creates a flow pattern that is slow at the beginning of inspiration, achieves highest speed at mid-inspiration, and tapers off at end-inspiration, creating a sinusoidal wave-form (sine waveform).


nautica902

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

Dinolord

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Reply 3 on: Yesterday
Wow, this really help

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