Dead space ventilation is a foundational concept in pulmonary physiology and mechanical ventilation. In this episode, we review anatomic dead space, alveolar dead space, physiologic dead space, and how dead space relates to ventilation-perfusion mismatch, shunt physiology, CO2 clearance, respiratory failure, and bedside clinical interpretation. Topics covered include: • What dead space ventilation means • Anatomic dead space • Alveolar dead space • Physiologic dead space • Ventilation without effective gas exchange • Relationship between dead space and CO2 clearance • High V/Q physiology • Dead space versus V/Q mismatch • Dead space versus pulmonary shunt • How pulmonary embolism increases dead space • Dead space in ARDS and critical illness • Dead space in mechanical ventilation • Minute ventilation and alveolar ventilation • Practical applications in respiratory failure and critical care Watch the full video on YouTube: [YouTube link] 📚 Join the WhiteBoard Medicine Patreon Community https://www.patreon.com/WhiteBoardMedicine Join a growing emergency medicine, critical care, and resuscitation education community built around high-yield clinical learning. Patreon members get access to: • Comprehensive Study Guides • Bedside One-Pagers • Clinical Reviews • Mini-Courses • Practice Questions • Ad-Free Videos • Structured Topic Collections 🌐 WhiteBoard Medicine Website Explore our growing library of critical care and emergency medicine content: https://www.whiteboardmedicine.com ⚠️ Educational Disclaimer: This content is intended for educational purposes only and should not be used as a substitute for clinical judgment, institutional protocols, specialist consultation, or individualized patient care. Full disclaimer: https://whiteboardmedicine.com/disclaimer

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“What did the council decide on item 42?” — answered with the speaker and the moment.

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