Have emergency Sudden coronary occlusion, lethal dysrhythmias, extension of infarct, and unrelenting equipment/medications available. pain are situations that may precipitate cardiac arest, requiring immediate life-saving therapies/transfer to CCU. Collaborative Administer supplemental ncreases amount of oxygen available for myocardial uptake, reducing ischemia and oxygen, as indicated resultant cellular irritation/dysrhythmias. Cardiac index, preload/afterload, contractility, and cardiac work can be measured Measure cardiac output and other noninvasively with thoracic electrical bioimpedance (TEB) technique. Useful in functional parameters as evaluating response to therapeutic interventions and identifying need for more appropriate. aggressive emergency care.