When lung compliance decreases, what should be done to the pressure target?

When lung compliance decreases, the pressure target should be increased to ensure adequate ventilation. Lung compliance refers to the ability of the lungs to stretch and expand during inhalation. A decrease in compliance means that the lungs are stiffer and less able to expand, which requires a higher driving pressure to achieve the same tidal volume.

Increasing the pressure target compensates for this reduced compliance, allowing for sufficient airflow to the lungs. This adjustment helps maintain effective ventilation and oxygenation, preventing hypoventilation or inadequate gas exchange. In mechanical ventilation, maintaining appropriate pressure levels is crucial for patient outcomes, especially when facing compliance challenges due to conditions like pulmonary edema, fibrosis, or atelectasis.