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A patient is receiving heparin therapy while in the intensive care unit to prevent pulmonary embolism. Which of the following laboratory tests would be MOST appropriate to evaluate in the prevention of secondary side effects related to heparin therapy?

Which of the following is NOT a potential indication for positive airway pressure therapies?

A patient with abdominal muscle weakness is having difficulty developing an effective cough. Which of the following phases of the cough reflex is primarily affected in this patient?

Which of the following is NOT a benefit of properly applied oxygen therapy in patients with chronic hypoxemia?

A chronic obstructive pulmonary disease (COPD) patient cannot develop an effective cough. Which of the following would you NOT recommend in order to help this patient generate a more effective cough?

Which of the following is not classified as a low flow oxygen delivery system?

A 52-year-old male is admitted to the hospital emergency room with a chief complaint of severe radiating chest pain and signs of central cyanosis. The attending physician asks for your advice on selecting a device to provide moderate oxygen for this patient. What device would you recommend?

Conditions that can affect airway patency and cause abnormal clearance of secretions include all of the following EXCEPT:

A patient receiving 4 liters per minute oxygen through a nasal cannula has a measured pulse oximetry of 94% and shows no signs of hypoxemia. What would you recommend at this time?

Which of the following would LEAST confirm proper operation of an oxygen analyzer?