In Part 1 of this episode on the latest ACLS Guidelines, Dr. Steven Brooks and Dr. Michael Feldman review and debate what's new and what's controversial in the the 2010 American Heart Association Guidelines for Cardiopulmonary Resuscitation and Emergency Cardiovascular Care. Within the frameworks of Cardiocerebral Rescusitation and the 3 phase model of rescucitation (electrical, circulatory and metabolic), they discuss the importance of high quality CPR, the de-emphasis on early ventilation and the utility of continuous quantitative waveform capnography. Dr. Brooks and Dr. Feldman answer questions such as: of all the therapeutic manoeuvres we do for the cardiac arrest patient, which ones have been shown to improve survival to hospital discharge? What is the evidence for chest compression machines? What is the utility of bedside ultrasound in the cardiac arrest patient? Why is cardiac arrest survival to discharge in Seattle the best in the world? Should we be performing 'hands-on defibrillation'? and many more.....