Final answer:
PEEP plays a crucial role in improving oxygenation and preventing alveolar collapse in patients with ARDS. By keeping the alveoli open, PEEP helps recruit collapsed lung regions, improve lung ventilation, and enhance gas exchange.
Step-by-step explanation:
In patients with Acute Respiratory Distress Syndrome (ARDS), Positive End-Expiratory Pressure (PEEP) plays a crucial role in improving oxygenation and preventing alveolar collapse. PEEP is a mechanical ventilation technique that involves applying a positive pressure at the end of expiration, keeping the airways open and increasing lung compliance. By keeping the alveoli open, PEEP helps to recruit collapsed lung regions, improve lung ventilation, and enhance gas exchange.
For example, in ARDS, the damaged alveoli become stiff and prone to collapse, leading to impaired oxygenation. By applying PEEP, the alveoli are kept open, allowing for better oxygenation and reducing the work of breathing.
It is important to note that the optimal level of PEEP varies for each patient and should be tailored to their specific needs. Monitoring oxygenation and other respiratory parameters is essential to ensure the proper adjustment of PEEP.