Which method is commonly used to deliver oxygen in a hospital setting?

The choice indicating that all of the methods are commonly used to deliver oxygen in a hospital setting is indeed accurate, as each method serves a distinct purpose depending on the patient's needs and condition.

A nasal cannula is often used for patients who require supplemental oxygen but are still able to breathe independently. It is a comfortable option for long-term use and allows for easier communication and eating.

A face mask provides a higher concentration of oxygen and is typically used for patients who need increased oxygen support but may not tolerate a nasal cannula. This method is useful in situations where higher oxygen flow is necessary, such as during acute episodes of respiratory distress.

The endotracheal tube is employed for patients who cannot breathe on their own or require mechanical ventilation. This method is more invasive but essential in critical care, allowing direct access to the airway for both oxygen delivery and mechanical ventilation.

These methods reflect the range of options healthcare providers have to deliver oxygen tailored to the patient's specific conditions and needs.