Cough Reflex Test (CRT) Practice Exam 2025 - Free CRT Practice Questions and Study Guide

The indication of effective ventilation during CPAP (Continuous Positive Airway Pressure) therapy is shown through a decreased work of breathing. When a patient experiences improved ventilation, the respiratory muscles do not have to work as hard to maintain adequate airflow and oxygenation. This reduction in the work of breathing often reflects that the airways are open and that the patient is receiving sufficient support from the CPAP device.

A decrease in the work of breathing can result from better lung expansion and more effective gas exchange, leading to less effort required by the patient. This improved efficiency in ventilation not only supports the patient's respiratory system but also contributes to greater comfort and overall clinical stability.

The other signs listed may be related to respiratory status but do not specifically point to the efficiency of ventilation in the context of CPAP usage. While stable vital signs could suggest overall patient stability, they do not directly assess the effectiveness of ventilation. Improved peak flow readings might indicate some enhancement in airflow but may not accurately reflect the patient's respiratory effort. Similarly, a decreased need for supplemental oxygen could suggest improved oxygenation but does not inherently indicate that ventilation has improved effectively.