Which of the following uses magnetism versus gas pressure as its ...

[saraeharris]

Which of the following uses magnetism versus gas pressure as its basic principle of operation?
 
  a. Bird Mark 14 ventilator
  b. Puritan Bennett PR-2 ventilator
  c. The Vest Airway Clearance System (also known as the ThAIRapy Vest)
  d. Percussionaire Intrapulmonary Percussive Ventilator (IPV-1)

Question 2

At the beginning of inspiration, gas flow to the patient from a Bird Mark 7 or 8 set on air-mix comes from which of the following?
 
  a. Venturi device c. Diluter regulator
  b. Flow controller d. Pneumatic cartridge

[Zebsrer]

Answer to Question 1

ANS: A
The Bird Mark series ventilators use magnetism versus gas pressure as their basic principle of op-eration.

Answer to Question 2

ANS: A
When set on air-mix, a Bird Mark 7 or 8 will direct the incoming source gas to the jet of the air-mix Venturi. The gas going to the patient is from the Venturi jet, the air entrained by the Venturi system, and the nebulizer jet.