In the context of respiratory management, what does "PEEP" stand for?

PEEP stands for Positive End-Expiratory Pressure. This term is crucial in respiratory management, particularly in mechanical ventilation strategies. PEEP is used to maintain a certain pressure in the airways at the end of expiration. This helps to keep the alveoli open and prevents them from collapsing, thereby improving oxygenation and gas exchange in the lungs. By maintaining a level of positive pressure at the end of expiration, PEEP enhances the surface area available for gas exchange and can reduce shunting, which is when blood bypasses the ventilated areas of the lung, helping to improve overall breathing efficiency.

This concept is particularly important in patients with conditions like Acute Respiratory Distress Syndrome (ARDS) or those receiving mechanical ventilation, where maintaining optimal lung function is essential for recovery. Understanding PEEP is vital for healthcare providers to manage patients effectively in acute respiratory settings.