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A patient with an upper airway obstruction is receiving helium-oxygen therapy by a nonrebreathing mask. The respiratory therapist notices that the reservoir bag is completely collapsing on inspiration. What is the cause of the problem?

After assuring a secure airway and ventilation with an FIO2 of 100%, what is the next treatment for a suspected local anesthesia toxicity reaction?

Which two peripheral nerves branch off of the posterior cord of the brachial plexus? (select all that apply)

An adult patient with congestive heart failure has written a do not resuscitate (DNR) advance directive. While performing oxygen therapy rounds, you notice her ECG monitor shows ventricular fibrillation and then asystole. What should be done?

 A patient on 50% oxygen has a PaO2 of 252 mm Hg. Which of the following should the respiratory therapist recommend?

A four-year- old child presents in the ED short of breath, febrile, drooling and complaining of a sore throat. A lateral neck x-ray is done and indicates the presence of a “thumb sign.” Based on this evaluation, the patient most likely has which of the following?

After an ultrasonic nebulizer treatment is given to an intubated 6-year-old child, large amounts of watery secretions are found with suctioning. A 10 French suction catheter with –120 mm Hg suction pressure is being used. What should be recommended in this situation?

During O2 rounds, the respiratory therapist notices a nebulizer delivering very little mist to the patient’s aerosol mask. Which of the following could cause this problem?

Which motion most often occurs at the Atlanto-Axial joint?

The following ABG results have been collected on a 52-year-old man with a pulmonary embolism. The patient was not receiving O2 when the sample was drawn. pH 7.55 PaCO2 28 mm Hg PaO2 142 mm Hg Which of the following should the respiratory therapist recommend at this time?