Author Question: When the therapist is initially setting the high-pressure alarm on the ventilator and the patient's ... (Read 31 times)

haleyc112 · **on:** Jul 16, 2018

When the therapist is initially setting the high-pressure alarm on the ventilator and the patient's plateau pressure is less than 30 cm H2O, what should the high-pressure alarm be set at?

a. 5 to 10 cm H2O above the peak pressure
b. 10 to 20 cm H2O above the peak pressure
c. 10 to 12 cm H2O above the plateau pres-sure
d. 10 to 15 cm H2O above the mean airway pressure

Question 2

A heat-moisture exchanger (HME) should be avoided in which of the following circumstances? 1. Patients with excessive secretions 2. Patients with a high FiO2 3. Patients with low body temperature

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

anyusername12131 · **Reply #1 on:** Jul 16, 2018

Answer to Question 1

ANS: B
If the plateau pressure is less than 30 cm H2O, the high pressure limit can be adjusted to 10 to 20 cm H2O above the peak inspiratory pressure.

Answer to Question 2

ANS: C
Use of HMEs should be avoided in the care of patients with secretion problems and those with low body temperature (<32 C), high spontaneous minute ventilation (>10 L/min), or air leaks in which exhaled tidal volume is less than 70 of delivered tidal volume.