Which of the following is the most common device used in the hospital setting? Select one: a. nasal catheter b. nasal cannula c. simple mask d. venturi mask

Answer

The correct answer is b. nasal cannula. This device is the most frequently used oxygen delivery system in hospitals because it is inexpensive, easy to apply, and well-tolerated by patients. Unlike masks (simple or Venturi), it allows the patient to speak, eat, and drink while receiving supplemental oxygen. It is typically used for stable patients who require low to moderate concentrations of oxygen (flows of 1 to 6 liters per minute). Other devices like the nasal catheter are less common due to discomfort, and masks are used for higher oxygen requirements or more specific concentration needs.