The document describes the anatomy and components of a ventilator, including filters, valves, monitors, and modes of breath delivery such as volume control, pressure control, and pressure support ventilation. It discusses factors that affect aerosol drug delivery to mechanically ventilated patients and compares different ventilator modes, noting that no single new mode has been proven superior for improving patient outcomes. The goals of setting the ventilator are also summarized.
Call Girls Hosur Just Call 9630942363 Top Class Call Girl Service Available
Anatomy of the ventilator
1. Anatomy of the Ventilator Dean Hess PhD RRT Associate Professor of Anesthesia Harvard Medical School Assistant Director of Respiratory Care Massachusetts General Hospital Editor in Chief Respiratory Care
2. air O 2 filter filter PATIENT Microprocessor (mode and breath delivery) inspiratory valve(s) (flow, volume, pressure, F I O 2 ) expiratory valve (PEEP) humidifier electrical power atmosphere monitors & alarms
3. expired gas humidifier ventilator patient Aerosolized drug (nebulizer or MDI) filter dead space gas compression bias flow suction
5. Crit Care Med 2007;35:260 VAP Crit Care Med 2007;35:260 Closed suction is cost-effective because the same catheter can be used multiple times; even for multiple days.
14. Equation of Motion Volume Ventilation E = 1/C X X P MUS + P AW = E V + R V . fixed volume and flow increased effort decreased airway pressure fixed pressure increased effort increased flow and tidal volume P MUS + P AW = E V + R V . Pressure Ventilation
27. Volume-Control vs Pressure Control Evidence for better outcomes with either volume-control or pressure-control is lacking VCV PCV PSV Tidal volume Fixed Variable Variable Inspiratory flow Fixed Variable Variable Airway pressure Variable Fixed Fixed Inspiratory time Fixed Fixed Variable Rate Minimum set Minimum set Not set