Focus: practical ECMO circuit design and live simulations covering configuration choices, tubing and oxygenator selection, flow targets, pressure monitoring, recirculation prevention, anticoagulation, and troubleshooting. Learning objectives: • Build safe ECMO circuits step-by-step. Choose pumps, oxygenators, and tubing to meet patient goals. Set and adjust flow, sweep, and pressures during simulation. Prevent and correct recirculation, chatter, and alarms.