How does CPAP improve oxygenation and ventilation in patients with certain respiratory problems?

CPAP (Continuous Positive Airway Pressure) improves oxygenation and ventilation by maintaining a constant airway pressure, which prevents airway collapse during sleep and enhances alveolar inflation. This increased lung volume allows for better gas exchange, improving oxygen delivery to the bloodstream. Additionally, CPAP reduces the work of breathing by stabilizing the airways, thereby facilitating more efficient ventilation in patients with respiratory conditions such as obstructive sleep apnea or COPD. As a result, patients experience improved respiratory function and overall oxygenation.