Final answer:
Bronchial tubes are essential for breathing and mucus helps trap foreign particles, but too much can be harmful. Blood oxygen levels indicate lung efficiency, and not taking cough suppressants may be recommended to allow mucus clearance.
Step-by-step explanation:
Understanding the Function of Bronchial Tubes and Mucus
The bronchial tubes are part of the respiratory system, extending from the trachea into the lungs where they branch into smaller tubes called bronchioles. Their primary function is to carry air in and out of the lungs, facilitating the exchange of oxygen and carbon dioxide.
Mucus serves as a protective layer in the bronchial tubes, trapping dust, pathogens, and other foreign particles. Excess mucus production can be problematic as it may block airways, making it difficult to breathe and potentially leading to infections.
Checking a patient's blood oxygen level is important when respiratory issues are present, as it can indicate how well the lungs are functioning in supplying the body with oxygen.
Dr. Tsosie advised against cough suppressant medications in this scenario possibly because these medications can prevent the clearing of mucus, which could be harmful if an infection is present or if mucus is obstructing the airways.