tailieunhanh - KEY QUESTIONS IN SURGICAL CRITICAL CARE - PART 5

tưới máu và giảm nhu cầu oxy của cơ tim. Các bong bóng thổi phồng có thể được Mỗi chu kỳ tim hoặc 1:02 hoặc 1:03 chu kỳ tim, nào cai sữa cho phép từ bóng Khi Bệnh nhân ĐÃ làm ổn định. Các bong bóng "nước ngoài là một giao thông Trong thời hạn gói kích thích sự hình thành huyết khối nên heparin IS đầy đủ yêu cầu. | Cardiovascular System perfusion and a reduction in myocardial oxygen demand. The balloon can be inflated every cardiac cycle or 1 2 or 1 3 cardiac cycles which allows weaning from the balloon when the patient has stabilised. The foreign balloon within the circulation is a stimulus to thrombus formation so full heparinisation is required. SCC p 8 A 68. A. true B. false C. false D. true E. false The IABP results in a reduction in afterload and myocardial oxygen demand and an increase in coronary and cerebral perfusion. In the clinical setting it is most commonly used as a stabilising measure prior to definitive surgical intervention. Indications for IABP include refractory angina typically in patients with left main stem disease severe three vessel disease or critical vein graft disease prior to coronary bypass surgery and cardiogenic shock caused by mitral regurgitation or VSD post-myocardial infarction. IABP is contra-indicated in patients with significant aortic regurgitation which it exacerbates aortic dissection aortic aneurysm and severe peripheral vascular disease. IABP may be complicated by lower limb ischaemia thromboembolism balloon rupture or entrapment sepsis and haemorrhage related to the anticoagulation that is required. Lower limb ischaemia warrants balloon removal. SCC p 8 A 69. A. true B. true C. false D. true E. true The first consideration in suspected cardiac arrest is always safety of rescuer and victim from dangers such as traffic electricity gas water etc. Next check the victim s responsiveness. If he responds leave him in the position he was found and get help. If he is unresponsive call for help turn him onto his back and open the airway by head tilt chin lift . Breathing is assessed for no more than 10 seconds. If he is breathing normally the victim is placed in the recovery position. If he is not breathing give two slow effective rescue breaths. Next check for signs of a circulation normal breathing movement presence of a pulse for no more