Which type of invasive support involves inserting a tube into the airway?

The correct answer involves intubation, which is a procedure that entails inserting a tube into the airway. This method is used to secure the airway in patients who may be unable to breathe adequately on their own due to respiratory failure, loss of consciousness, or during surgical procedures requiring general anesthesia. Intubation allows for direct access to the trachea, facilitating mechanical ventilation and ensuring oxygen delivery to the lungs.

Other options presented, while related to respiratory support, do not involve inserting a tube into the airway. High flow nasal cannula is a non-invasive method that delivers oxygen via nasal prongs but does not require intubation. BiPAP, or Bilevel Positive Airway Pressure, is also a non-invasive form of ventilation that uses a mask to deliver pressurized air, assisting in breathing without the need for airway intervention. Similarly, a non-rebreather mask provides high-flow oxygen but, again, does not involve inserting any tube into the airway. Each of these alternatives serves important roles in respiratory care but does not provide the secure airway access afforded by intubation.