A series of tubes that allow gas to flow inside the ventilator ...

[casperchen82]

A series of tubes that allow gas to flow inside the ventilator and between the ventilator and the patient is referred to as the:
 
  a. pneumatic circuit.
  b. control circuit.
  c. control scheme.
  d. patient circuit.

Question 2

Modern intensive care units' (ICU) ventilators regulate gas flow to the patient by using which of the following?
 
  a. Rotary drive pistons
  b. Linear drive pistons
  c. Proportional solenoids
  d. Spring-loaded bellows

[upturnedfurball]

Answer to Question 1

ANS: A
A pneumatic circuit, or pathway, is a series of tubes that allow gas to flow inside the ventilator and between the ventilator and the patient.

Answer to Question 2

ANS: C
Proportional solenoid valves control flow by opening and closing either completely or in small increments. These valves, which are driven by various motor-based mechanisms, have a rapid re-sponse time and great flexibility in flow control. The other answers are all volume-displacement devices.

[casperchen82]

Thank you

[upturnedfurball]

Happy to help you