The patient's lung has an air leak Correct Answer: You are called to the emergency department to
help care for a patient who was in a vehicle accident and has chest injuries including broken ribs.
Crepitations are felt while palpitating the patient's neck. What is most likely the cause of this?
Reversible airway obstruction Correct Answer: A forced expiratory measurement obtained after
the administration of a bronchodilator shows an increase in FEV1 from 60% to 80% of predicted.
This indicates a:
complete airway obstruction Correct Answer: During capnography monitoring of a mechanically
ventilated patient, you note that the end-tidal PCO2 (PetCO2) has dropped to 0 mm Hg. This
finding may indicate:
inserting an esophageal-tracheal combitube Correct Answer: An unconscious apneic patient with
a full stomach cannot be orally intubated in the emergency room. Which of the following would
your recommend be?
patients size and clinical condition Correct Answer: While establishing initial ventilatory support
settings for a new patient, the most important consideration is the:
Fever (hyperthermia) Correct Answer: A male patient has a lower than normal mixed venous O2
content. Which of the following is the most likely cause of this condition?
apply 5-10 cm H20 pressure support Correct Answer: You are trying to wean an alert intubated
patient off full ventilatory support using the CPAP protocol with 40% O2. Early in the initial
effort her respiratory rate increases from 24 to 30/min and you start to observe some use of her
accessory muscles while breathing. Which of the following would be your first action at this
time?
70 minutes Correct Answer: What is the approximate duration of flow of an oxygen E-cylinder
at 1000 psi running at 4 L/min?
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