#259 Respiratory Failure Types 1–4 Explained | Hypoxemic vs Hypercapnic Made Simple

Respiratory failure is one of the most common and high-stakes problems in emergency and critical care medicine — but understanding the different types can be confusing. In this episode, we break down Type 1–4 respiratory failure into a simple, structured framework you can actually use at the bedside. We focus on the key distinction between hypoxemic vs hypercapnic respiratory failure, how to interpret ABGs, and how to recognize the underlying physiology driving each type. Whether you're a medical student, resident, nurse, respiratory therapist, or practicing clinician, this episode is designed to help you move beyond memorization and build a practical, bedside approach to respiratory failure. We cover: • Type 1 respiratory failure (hypoxemic) — causes and physiology • Type 2 respiratory failure (hypercapnic) — ventilation failure and CO₂ retention • Type 3 respiratory failure — perioperative atelectasis and reduced lung volumes • Type 4 respiratory failure — shock-related respiratory failure • ABG interpretation and how to differentiate respiratory failure types • Common ICU and ED causes including ARDS, COPD, pulmonary edema, and neuromuscular disease • A structured framework for bedside recognition and management 📺 Watch the full video version here: 👉 https://www.youtube.com/watch?v=3tZNINGVFkE 📚 Master emergency critical care with our full curriculum, study guides, and practice questions: 👉 https://www.patreon.com/c/WhiteBoardMedicine Study guides • Mini-courses • Practice questions • Structured ICU curriculum • Ad-free videos ⚠️ Disclaimer: This content is for educational purposes only and is not intended to provide medical advice, diagnosis, or treatment. Clinical decisions should always be made based on individual patient circumstances and in accordance with current guidelines and institutional protocols.