<P> A tracheal tube is a catheter that is inserted into the trachea for the primary purpose of establishing and maintaining a patent airway and to ensure the adequate exchange of oxygen and carbon dioxide . </P> <P> Many different types of tracheal tubes are available, suited for different specific applications: </P> <Ul> <Li> An endotracheal tube is a specific type of tracheal tube that is nearly always inserted through the mouth (orotracheal) or nose (nasotracheal). </Li> <Li> A tracheostomy tube is another type of tracheal tube; this 2--3 - inch - long (51--76 mm) curved metal or plastic tube may be inserted into a tracheostomy stoma (following a tracheotomy) to maintain a patent lumen . </Li> <Li> A tracheal button is a rigid plastic cannula about 1 inch in length that can be placed into the tracheostomy after removal of a tracheostomy tube to maintain patency of the lumen . </Li> </Ul> <Li> An endotracheal tube is a specific type of tracheal tube that is nearly always inserted through the mouth (orotracheal) or nose (nasotracheal). </Li>

What is the difference between endotracheal and tracheostomy tube
find me the text answering this question