This is an AI generated podcast of Tonya Piehl's lecture notes. This lesson outlines key aspects of mechanical ventilation, beginning with definitions of trigger, limit, and cycle variables that govern breath delivery. It then details various modes of ventilation, including controlled mandatory ventilation (CMV) where the machine dictates all aspects of breathing, and assist-control (A/C) ventilation where the patient can trigger machine-delivered breaths. Synchronized intermittent mandatory ventilation (SIMV) and pressure support ventilation (PSV) are also explained as methods allowing for partial ventilatory support and spontaneous breathing. Finally, the lesson covers continuous positive airway pressure (CPAP) for patients with adequate spontaneous breathing but hypoxemia.