WGU Critical CARE TEST
CMV – -Which of the following ventilator modes delivers oxygen at a preset tidal volume or
pressure in response to the patient’s inspiratory efforts and initiates a breath if the patient fails to
do so within the preset time?
IMV – -Which of the following ventilator modes delivers oxygen at a preset tidal volume or
pressure and rate while allowing the patient to breathe spontaneously? Ventilator breaths are
synchronized to the patient’s respiratory effort.
CPAP – -Which of the following ventilator modes applies positive pressure during the patient’s
spontaneous breaths? The patient controls the rate, inspiratory flow, and tidal volume.
ASV – -Which of the following ventilator modes automatically adjusts its settings to maintain
100mL/min/kg of minute ventilation?
What is the typical setting for Tidal Volume? – -10-12 mL/kg
What is the typical setting for pressure support? – -5-10 cm H2
Which of the following ventilator alarms can be caused by a kinked/clogged tubing? – -High
Pressure Limit
Which of the following ventilator alarms can happen when the patient stops spontaneously
breathing on their own? – -low exhaled tidle volume
Which of the following ventilator alarms can happen when a patient disconnects their ET tube
from the ventilator tubing? – -low inspiratory pressure
The nurse is discussing the pharmacological treatment of a pulmonary embolism (PE) – –
Streptokinase is a fibrinolytic reserved for severe PE. Heparin is administered to prevent further
clots from forming and has no effect on the existing clot. The heparin should be adjusted to
maintain the activated partial thromboplastin time (aPTT) in the range of 2 to 3 times of upper
normal. Warfarin should be started at the same time, and when the international normalized ratio
(INR) reaches 3.0, the heparin should be discontinued. The INR should be maintained between
2.0 and 3.0.
- -Positioning the patient prone with the right lung in the dependent position is best used for
patients with diffuse lung disease because it maximizes matching of ventilation and perfusion.
EKG: Hypokalemia – -ST DEPRESSION, INVERTED T WAVE, AND PROMINENT U
WAVE
*The most common cause of premature ventricular tachycardia (PVCs) is
Aortic Stenosis – -Because aortic stenosis causes turbulence as blood is ejected, it causes a
murmur during systole that is low in pitch. Mitral regurgitation causes a high-pitched systolic