An open-loop ventilator system can be described as which of the ...

[notis]

An open-loop ventilator system can be described as which of the following?
 
  a. Feedback c. Unintelligent
  b. Hierarchical d. Servo-controlled

Question 2

A closed-loop ventilator system can be described as which of the following? 1. Feedback 2. Hierarchical 3. Unintelligent 4. Servo-controlled
 
  a. 1 c. 1 and 4
  b. 2 and 3 d. 2 and 4

[bulacsom]

Answer to Question 1

ANS: C
Unintelligent ventilators are called open-loop systems because they do not respond to changes in the delivery of gas to the patient when there are any problems.

Answer to Question 2

ANS: C
A closed-loop ventilator system is an intelligent system that can respond to certain inputs based on programming. This type of system is similar to cruise control on a car. When a parameter is set on the ventilator, the ventilator compares the input with the output and makes certain adjust-ments. These systems are also called feedback or servo-controlled systems.