What is the purpose of adjusting tidal volume to achieve an inspiratory plateau pressure of ≤ 30?

The purpose of adjusting tidal volume to achieve an inspiratory plateau pressure of ≤ 30 cm H2O is primarily to reduce the risk of ventilator-associated lung injury. Maintaining plateau pressures below this threshold helps to minimize the risk of overdistension of the alveoli and the associated mechanical strain on lung tissues during mechanical ventilation.

When inspiratory plateau pressures are kept low, it indicates that the lungs are being ventilated gently without excessive pressure that could lead to barotrauma or volutrauma. This approach is particularly crucial in patients with acute respiratory distress syndrome (ARDS) or other forms of lung injury, where inflammatory responses can exacerbate lung damage. By adhering to this guideline, practitioners aim to protect lung function and promote better outcomes during mechanical ventilation.

While the other choices may relate to different aspects of ventilator management, they do not correctly address the specific intent and importance of monitoring and adjusting the tidal volume in the context described.