Study Unit 5 Cardiopulmonary Resusitation EMS I A Study Unit 5 Cardiopulmonary Resusitation
Unit Outcomes Identify the importance of early, appropriate interventions that lead to optimizing patient survival. Perform prompt, high quality chest compressions for adult, child & infant victims. Discuss the role & effectiveness of early defibrillation.
Cardiopulmonary Resuscitation Definition: Cardiopulmonary resuscitation (CPR) is a procedure to support and maintain breathing and circulation for a person who has stopped breathing (respiratory arrest) and/or whose heart has stopped (cardiac arrest). Comprises of? 2 ventilations : 30 compressions At least 5 – 6 cm depth for compressions at a rate of 100 - 120/min
Cardiopulmonary Resuscitation What are we focusing on? CPP > 15mmHg Few interruptions Interruptions < 10 seconds Coronary perfusion pressure (CPP)
CPP Coronary perfusion pressure. This is the perfusion of coronary vessels. Occurring during diastole. Definition: CPP is the difference between the aortic diastolic pressure and the left ventricular end diastolic pressure. Normal: 60 -80 mmHg Relaxation = diastole During CPR we aim to keep a CPP > 15mmHg (drops with every interruption. Therefore interruptions < 10seconds)
Myocardial tissue Myocardial tissue has the highest oxygen consumption per tissue mass. Oxygen extraction is 70 – 80%. Normal tissue is 25%
Outcome Based CPR High Quality CPR Few interruptions Early CPR Early defibrillation Good chest rise with high flow O2 Goal based post cardiac arrest care
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