End tidal capnography (ETCO₂) is one of the most important tools in emergency medicine, anesthesia, and critical care. In this episode, we break down normal and abnormal capnography waveforms, explain the physiology behind each pattern, and show you how to apply ETCO₂ in real clinical scenarios.

📌 What’s covered in this video: Normal ETCO₂ waveform and interpretation. Obstructive patterns (bronchospasm, airway obstruction). The “curare cleft” and inadequate neuromuscular blockade. Hyperventilation vs hypoventilation on waveform analysis. Capnography in cardiac arrest: ROSC detection & quality of CPR. Clinical pearls for the ED, ICU, and OR.

Timestamps:

Chapter 1 (0:00 - 19:36) - Normal Capnography Waveform Analysis

Chapter 2 (19:37 - 28:31) - Obstruction Capnography Waveform Analysis

Chapter 3 (28:32 - 34:20) - Curare Cleft Chapter 4 (34:21 - 42:11) - Hyperventilation, Hypoventilation, And Waveform Analysis

Chapter 5 (42:12 - 54:37) - End Tidal Capnography In Cardiac Arrest

Link To YouTube Video: https://www.youtube.com/watch?v=eyut072tz5s

📖 More Resources Download study guides, infographics, and practice questions here: https://www.patreon.com/collection/1443765

👍Become a WhiteBoard Medicine member for early access and perks! https://www.youtube.com/channel/UCiMhM7xCTT8b5SJRnhpH7Ag/join

👇DON'T MISS OUT - JOIN OUR PATREON COMMUNITY TODAY 👇 https://www.patreon.com/WhiteBoardMedicine

DISCLAIMER THIS PODCAST DOES NOT PROVIDE MEDICAL ADVICE. The information, including but not limited to, audio, text, graphics, images and other material contained on this website are for informational purposes only. No material on this site is intended to be a substitute for professional medical advice, diagnosis or treatment. Always seek the advice of your physician or other qualified health care provider with any questions you may have regarding a medical condition or treatment and before undertaking a new health care regimen, and never disregard professional medical advice or delay in seeking it because of something you have read, watched, or listened to on this video, or any other videos, reports, texts tweets or other sources.