When the maximum pressure limit is reached during volume ...

[vicotolentino]

When the maximum pressure limit is reached during volume ventilation, which of the following occurs?
 
  1. Inspiratory time is decreased.
  2. Volume delivered is decreased.
  3. Inspiration continues until volume is delivered.
  4. Pressure is held and the breath is volume cycled.
  a. 3 only
  b. 4 only
  c. 1 and 2 only
  d. 2 and 4 only

Question 2

The variable that a ventilator uses to end inspiration is known as which of the following?
 
  a. Cycle
  b. Limit
  c. Trigger
  d. Baseline

[234sdffa]

Answer to Question 1

ANS: C
The maximum pressure limit is a safety mechanism used during volume ventilation to avoid ex-cessive pressure in the lungs. When the pressure measured by the ventilator reaches the maximum pressure limit inspiration ends. This means that the inspiratory time will be decreased and the volume delivered will be less than the set volume. Therefore, reaching maximum pressure limit causes the delivered breath to be pressure cycled.

Answer to Question 2

ANS: B
Cycle is the term used to call the variable that is used to end inspiration. Limit is the maximum setting for a variable. Trigger is the term used to call the variable that is used to begin inspiration. Baseline is the pressure at the end of inspiration.