Which of the following are the hazards and complications of incentive spirometry?1. hyperventilation2. fatigue3. discomfort secondary to inadequate pain control4. barotrauma

Which of the following factors will decrease the FIO2 delivered by a low-flow O2 system?I. short inspiratory timeII. fast rate of breathingIII. lower O2 inputIV. large minute ventilation

All of the following indicate a potential need for administration of a water or isotonic saline aerosol except:

What is the goal of using an unheated bubble humidifier with oronasal oxygen delivery systems?

Which of the following alternatives may increase the FIO2 capabilities of air-entrainment nebulizers?I. Add open reservoir to expiratory side of T-tube.II. Connect together two or more nebulizers.III. Use a commercial dual-flow system.IV. Add open reservoir to inspiratory side of T-tube.

Inhalation of dry gases can do which of the following?I. decrease viscosity of secretionsII. mucociliary impairmentIII. increase airway irritability

A respiratory therapist observes that the peak inspiratory pressure of an intubated patient has increased from 24 – 35 cmH2O, exhibits wheezes bilaterally and the pressure limit alarm is intermittently activating. The therapist notes the Pplat and PEEP have not changed. The therapist should:

A 52-year-old man is admitted to the hospital emergency department with a primary complaint of severe radiating chest pain and signs of central cyanosis. The attending asks for your advice on selecting a device that provides a moderate FIO2 for this patient. Which of the following would you recommend?

Ipratropium bromide (Atrovent) is indicated for maintenance treatment of the following diseases, except:

Gas leaving an unheated humidifier at 10° C (50 F) and 100% relative humidity (absolute humidity = 9.4 mg/L) would provide what relative humidity at body temperature?