Final answer:
The nurse will include in the teaching that the humidifier prevents condensation in the oxygen tubing.
Step-by-step explanation:
The nurse would include in the teaching about the humidifier that it prevents condensation in the oxygen tubing. When oxygen is administered, it can become dry, and using a humidifier helps add moisture to the oxygen. This prevents drying of the respiratory tract and irritation. It does not add medication, increase oxygen flow rate, or enhance the concentration of oxygen delivered.