What is a common reason for applying CPAP in emergency respiratory care?

The application of Continuous Positive Airway Pressure (CPAP) in emergency respiratory care primarily serves to reduce the work of breathing. CPAP provides a continuous flow of air that keeps the airways open, which helps prevent airway collapse during inhalation and exhalation. This is particularly beneficial for patients experiencing conditions such as pulmonary edema or chronic obstructive pulmonary disease (COPD), where airflow is restricted due to fluid or airway obstruction. By maintaining airway patency and improving ventilation, patients can breathe more easily and efficiently, ultimately reducing their respiratory effort.

In contrast, while CPAP may have secondary effects on anxiety reduction and general patient comfort, its primary purpose is to support breathing rather than directly relieve anxiety or improve blood circulation. Additionally, CPAP is not typically used to deliver medication, as its design and function focus on enhancing respiratory mechanics rather than administering pharmacological therapies. Therefore, the key reason for its application lies in its effectiveness in decreasing the work of breathing in patients experiencing respiratory distress.