This is a Visual Rounds episode — a more foundational crossover from the YouTube side of Trauma ICU Rounds. Shock is not simply hypotension. In this episode, we work through a physiology-first approach to shock: oxygen delivery, cardiac output, arterial oxygen content, MAP versus perfusion, compensated shock, mixed shock, and the four major shock states — hypovolemic, cardiogenic, obstructive, and distributive. The goal is to move beyond simply naming a shock category and instead understand w...