CanadiEM Podcasts: CRACKCast, ClerkCast, CarmsCast, First Year Diaries CRACKCast E193 - Mechanical Ventilation and Noninvasive Ventilatory Support
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Sep 3, 2018 Dive into the essentials of mechanical ventilation! Explore the intricacies of ventilator settings tailored for emergencies and the significance of effective patient care. Learn about non-invasive support like BiPAP and CPAP while navigating the complexities of intubation. Uncover strategies to ensure comfort in intubated patients and the role of the Richmond Agitation Sedation Scale. Also discussed are the benefits of high-flow nasal cannula in treating hypoxia and tactics to prevent ventilator-acquired pneumonia. A must-listen for healthcare enthusiasts!
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Physiology of Positive Pressure Ventilation
- Transitioning from negative to positive pressure ventilation decreases venous return and cardiac output.
- This can cause relative hypotension around intubation; hence, resuscitate before intubating.
PCV vs VCV Ventilation Modes
- Pressure control ventilation (PCV) sets airway pressure to limit barotrauma.
- Volume control ventilation (VCV) guarantees volume but risks high lung pressures; choose based on lung pathology.
Ventilator Modes Explained
- Assist control ventilation delivers a minimum preset number of breaths and assists patient-triggered breaths.
- SIMV helps synchronize mandatory and spontaneous breaths, useful for weak respiratory effort.
