Question

In intubated patients, what do sources of increased imposed work of breathing include?

1. endotracheal tube
2. ventilator circuit
3. auto-PEEP

a. 1 and 2
b. 1 and 3
c. 2 and 3
d. 1, 2, and 3

Answer 1

In intubated patients, sources of increased imposed work of breathing include the endotracheal tube, ventilator circuit, and auto-PEEP.

Step-by-step explanation:

The sources of increased imposed work of breathing in intubated patients include the endotracheal tube, ventilator circuit, and auto-PEEP.

1. Endotracheal tube: The presence of the endotracheal tube itself can cause increased resistance to airflow, leading to increased work of breathing.

2. Ventilator circuit: The length and diameter of the ventilator circuit can also contribute to increased resistance and work of breathing.

3. Auto-PEEP: Auto-PEEP, or intrinsic positive end-expiratory pressure, occurs when there is inadequate time for complete exhalation before the next breath. This can lead to increased work of breathing as the patient has to overcome the pressure to initiate inhalation.