Theoretically, a nonrebreathing mask can deliver 100% oxygen…

Theoretically, a nonrebreathing mask can deliver 100% oxygen, assuming that the mask fits appropriately on the patient’s face and is the only source of gas being inhaled by the patient. However, in actual practice, the disposable nonrebreathing mask can deliver what percentage of FIO2?

A pulse oximeter on a patient with a tracheostomy shows 89%…

A pulse oximeter on a patient with a tracheostomy shows 89% saturation. The patient has a heated humidifier with a 40% air-entrainment tracheostomy collar. A rapid assessment shows no secretion production and equal breath sounds. Which of the following is the most appropriate first step?

Which of the following are problems associated with patient…

Which of the following are problems associated with patient use of a metered dose inhaler (MDI)?1. Failure to coordinate inhalation and actuation of the inhaler2. A too-rapid inspiratory flow rate3. Failure to shake and mix canister contents4. Cessation of inspiration as the aerosol strikes the throat