Which of the following describes the use of chest physiotherapy?

The use of chest physiotherapy primarily focuses on helping to mobilize secretions from the lungs. This therapeutic technique involves various methods such as percussion, vibration, and postural drainage, aimed at loosening and facilitating the clearance of mucus and other secretions from the airways. By promoting airway clearance, chest physiotherapy improves lung function and reduces the risk of infections.

Enhancing gas exchange in the lungs is a goal that can be indirectly supported by ensuring that airways are clear; however, this is not the primary purpose of chest physiotherapy. Similarly, increasing lung capacity can be a secondary benefit if secretions are effectively managed, but it is not the main focus. Managing sleep apnea involves different strategies and interventions that do not typically include chest physiotherapy, as it addresses upper airway obstruction rather than secretions within the lungs. Therefore, the clear purpose of chest physiotherapy is indeed to assist in mobilizing secretions from the lungs, making it a critical intervention in respiratory care.