What is the initial setting range for PEEP in cmH2O?

The initial setting range for Positive End-Expiratory Pressure (PEEP) is typically between 2 to 6 cmH2O. This range is considered a starting point for many patients who require mechanical ventilation, especially to improve oxygenation and prevent atelectasis without significantly compromising hemodynamics.

PEEP helps to maintain alveolar recruitment at the end of expiration, thereby improving functional residual capacity (FRC) and allowing for better gas exchange. Setting PEEP too low may not provide sufficient recruitment of collapsed alveoli, while setting it too high can lead to over-distension of the lungs and potential hemodynamic instability. Therefore, beginning with a range of 2 to 6 cmH2O is a balanced approach, ensuring the airway pressure is effective in enhancing oxygenation while minimizing the risk of adverse effects.

Knowing this standard helps practitioners manage ventilatory support more effectively, particularly in critical care settings where accurate ventilatory parameters are essential for patient outcomes.