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While suctioning an adult patient, the respiratory therapist observes evidence of hypoxemia on the bedside heart monitor. Which of the following are acceptable forms of treatment for the therapist to recommend?

What is the normal VD/VT ratio for a patient breathing room air?

A 2-year-old child with croup has been intubated for 4 days with a 4 mm ID uncuffed endotracheal tube. Heated aerosol at an FIO2 of 0.30 has been delivered to the patient. The physician asks the respiratory therapist to evaluate the patient for possible extubation. Which of the following would most likely indicate that the patient is ready for extubation?

Which of the following formulas will determine the amount of physiologic deadspace for a patient?

A 4-year-old girl is admitted to the emergency department with persistent dry coughing. Chest radiograph results reveal normal inspiration with the right lung remaining expanded on expiration. Which of the following should the respiratory therapist recommend at this time?

What is the normal VD/VT ratio for a patient breathing room air?

While suctioning a patient who is being mechanically ventilated, the respiratory therapist notes the following ECG pattern on the monitor: Suctioning is stopped and the patient is returned to the ventilator. Which of the following drugs should the respiratory therapist recommend FIRST?

Which of the following would be the most appropriate test to evaluate partial vocal cord paralysis in a patient complaining of difficulty swallowing? 

A 2-year-old child with croup has been intubated for 4 days with a 4 mm ID uncuffed endotracheal tube. Heated aerosol at an FIO2 of 0.30 has been delivered to the patient. The physician asks the respiratory therapist to evaluate the patient for possible extubation. Which of the following would most likely indicate that the patient is ready for extubation?

Airways resistance (Raw) of 1.8 cm H2O/L/sec is measured for a patient receiving mechanical ventilation. The respiratory therapist should suspect that the patient may have