Author Question: What variable begins the inspiratory phase of a ventilator? a. Cycle c. Control b. Limit d. ... (Read 59 times)

jman1234 · **on:** Jul 16, 2018

What variable begins the inspiratory phase of a ventilator?

a. Cycle c. Control
b. Limit d. Trigger

Question 2

The main parameter that the ventilator manipulates for any given breath is referred to as which of the following?

a. Control circuit c. Control variable
b. Phase variable d. Cycle variable

amandalm · **Reply #1 on:** Jul 16, 2018

Answer to Question 1

ANS: D
The trigger variable begins inspiration. The cycle variable ends the inspiratory phase and begins exhalation. The limit is the maximum value for a variable that cannot be exceeded during inspira-tion. The control variable is one of the four elements of breath delivery that the ventilator is ma-nipulating.

Answer to Question 2

ANS: C
The main parameter or variable controlled by the ventilator for any given breath is referred to as the control variable. A control circuit is part of the internal circuit of a mechanical ventilator and consists of mechanical devices, such as spring-loaded valves, pneumatic systems, or fluidic com-ponents. Phase variables are the variables that control the four phases of a breath. A cycle varia-ble is the variable that is being used by the ventilator to end inspiration.