PEEP can improve oxygenation.
It can also worsen shock.
Both statements are true.
PEEP increases pressure in the thorax. This can recruit collapsed alveoli, improve functional residual capacity, reduce shunt, and improve oxygenation.
But the circulation lives in the thorax too.
Full post, key takeaways, references, and the rest of the Core Medical Education collection are available for WhiteBoard Medicine members.
How positive pressure ventilation changes preload, pulmonary vascular resistance, and right ventricular function.
Study Guide TopicARDS diagnosis, lung-protective ventilation, driving pressure, VILI, and severe hypoxemia.
Mini CoursesStructured video chapters, study guides, practice questions, final assessments, and clinical summaries.
Study Guide TopicOxygen delivery, HFNC, COPD, pneumonia, pulmonary embolism, capnography, and blood gases.
Study Guide TopicECMO, IABP, ventricular unloading, and mechanical support physiology.
