Final answer:
A transtracheal catheter is a tube that is inserted directly into the trachea to deliver oxygen. It allows for the delivery of a precise FiO2 and flow rate, which can be adjusted according to the patient's needs.
Step-by-step explanation:
A transtracheal catheter is a tube that is inserted directly into the trachea to deliver oxygen. The catheter allows for the delivery of a precise FiO2 (fraction of inspired oxygen) and flow rate. The FiO2 and flow rate can be adjusted according to the patient's needs.
For example, a transtracheal catheter may deliver a higher FiO2 compared to a nasal cannula, which only delivers a maximum of 60% FiO2. Additionally, the flow rate can be adjusted to ensure adequate oxygenation of the patient.