What is the purpose of an endotracheal tube?

The primary purpose of an endotracheal tube is to secure the airway. This device is inserted into the trachea to establish and maintain a clear path for breathing when a patient's natural airway is compromised or when ventilatory support is necessary. By securing the airway, the endotracheal tube ensures that air can flow unobstructed into the lungs, allowing for adequate gas exchange.

While endotracheal tubes can be used in conjunction with procedures that deliver medications, provide supplemental oxygen, or facilitate suctioning, these functions are secondary to the main objective of maintaining airway patency. The secure placement of the tube prevents aspiration and helps control ventilation, making it a critical tool in emergency and critical care settings.