Critical Care Time Reboot - Hypoxemia Masterclass
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Oct 20, 2025 Dive into a master class on hypoxemia, where oxygen delivery is paramount. Discover the clinical distinction between hypoxemia and hypoxia, and the essential types of hypoxia that can arise. Fascinating lessons are drawn from Arctic icefish on effective oxygen strategies. The hosts explore six critical causes of hypoxemia, from altitude effects to various physiological mismatches. A practical bedside approach is outlined to tackle hypoxemia, emphasizing the importance of optimizing oxygen delivery in critical care settings.
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Three Ways To Boost Oxygen Delivery
- Improve oxygen delivery by raising hemoglobin, increasing hemoglobin saturation, or increasing cardiac output.
- Use transfusions, inotropes, or fluid/chronotropic strategies to adjust these variables in the ICU.
Oxygen Is The Core Of ICU Physiology
- Oxygen is both toxic and essential, acting as the terminal electron acceptor that enables high-energy life.
- Most ICU physiology and pathology reduce to problems of oxygen delivery and utilization.
Hypoxemia Versus Hypoxia
- Hypoxemia is low oxygen tension in the blood (PaO2); hypoxia is inadequate tissue oxygen utilization or supply.
- They often coexist but are distinct and require different diagnostic thought.