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By V. Kaelin. The California Maritime Academy. 2017.

During CPR generic atrovent 20mcg otc, correct reversible causes The carotid pulse should be checked only if the If not done already: Defibrillate • Check electrode/paddle positions and ECG changes to a rhythm compatible with a cardiac output. In addition, successful defibrillation CPR 3 minutes after is often followed by a period of apparent asystole before a 1 minute • Consider: Amiodarone, atropine/ defibrillation) coordinated rhythm is established. Even if a rhythm that is pacing, buffers normally compatible with a cardiac output is obtained, a period Potentially reversible causes of impaired myocardial contractility often occurs, resulting in • Hypoxia a weak or impalpable carotid pulse. It is important not to make • Hypovolaemia a spurious diagnosis of pulseless electrical activity under these • Hyper- or hypokalaemia and metabolic disorders • Hypothermia circumstances; for this reason the algorithm recommends only • Tension pneumothrax one minute of cardiopulmonary resuscitation (CPR) before • Tamponade reassessment of the rhythm and a further pulse check. Adapted from Resuscitation Guidelines 2000, London: Resuscitation ventilation is continued at a rate of about 12 ventilations per Council (UK), 2000 minute. Continuous chest compressions may be possible with a laryngeal mask airway (LMA), but the seal around the larynx must prevent gas leaking and permit adequate ventilation of the lungs. If this is not possible, chest compressions should be interrupted to allow the usual 15:2 compression:ventilation ratio. Intravenous access should be established at an early stage in the management of cardiac arrest. Tracheal intubation is central veins allows drugs to be delivered rapidly into the the preferred method, but this depends on the experience of the rescuer; the LMA or Combi-tube are acceptable alternatives. In most circumstances peripheral venous cannulation is a concentration of oxygen as possible quicker, easier, and safer. The choice will be determined by the skills of those present and the equipment available. In recent recommendations on the treatment of patients with VF refractory to initial attempts at defibrillation, anti-arrhythmic drugs have achieved less prominence. Amiodarone is currently recommended in the United Kingdom as the agent most likely to be successful in this situation.

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When Ian was 5 years was exemplified in his classic Presidential old purchase 20 mcg atrovent with mastercard, his parents sent him home to Britain to Address, entitled “Seek and Ye Shall Find,” to the receive an education in an English boarding Canadian Orthopedic Association in 1977, in school. He attended medical school at the Uni- which he stated: “You do not have to be a trained versity of Birmingham, graduating with first-class investigator to discover. After a residency in general and orthope- serve your sense of wonder, your ability to be dic surgery, he served in the Royal Army Medical astonished and you must be sure that your brain Corps, from 1945 to 1947. He then completed remains connected to your retina so that you will his orthopedic training at the Royal National not only see, but you will also perceive.... More became interested in low-back disability and, at importantly, it is an attitude of mind. Every the recommendation of Sir Herbert Seddon, went surgeon must recognize his own potential in this to Toronto in 1950, to study the pathogenesis of regard and not be content to leave advances to low-back pain, as a research fellow at the Bunting others. As a testimonial and legacy to Ian’s outstand- Ian’s outstanding contributions as researcher, ing influence as a teacher and his ability to shape teacher, and orthopedic surgeon led to his being the lives of others, a dynamic group of 40 of his asked, by the Chairman of the University, Dr. Dewar, to establish a university which looked to Ian and his wife, Reta, as guiding orthopedic service at the Toronto General Hospi- patrons. Ian acquired a passionate devotion and pride uate fellows with Ian, are now located in 22 ortho- for his adopted country, for Toronto, and for its pedic centers and seven countries. A very close personal rela- Although Ian’s scientific contributions have tionship developed between Ian and Dr. Dewar made a lasting mark in orthopedics, for those who and his other Toronto colleagues. He was knew him personally his personal traits are what appointed Professor of Orthopedic Surgery at the will be most cherished. His warm friendship, University of Toronto and Chief of the Orthope- loyalty, tremendous sense of humor, ability to dic Service at the Wellesley Hospital. Although he was interna- teachings, in both the spoken and written word, tionally renowned as a spine surgeon, his most will be passed on by his friends, colleagues, 213 Who’s Who in Orthopedics fellows, and residents to future orthopedic sur- and after a period under house arrest he retired to geons as a viable continuation of his presence. Ian Macnab died on November 25,1992, at the Apart from his work on intestinal resections, Toronto General Hospital, after a brief illness.

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