Handbook of Blood Gas/Acid-Base Interpretation PDF
Preview Handbook of Blood Gas/Acid-Base Interpretation
Ashfaq Hasan Handbook of Blood Gas/Acid-Base Interpretation Second Edition 123 Handbook of Blood Gas/Acid-Base Interpretation Ashfaq Hasan Handbook of Blood Gas/ Acid-Base Interpretation Second Edition Ashfaq Hasan, M.D Department of Pulonary Medicine, Deccan College of Medical Sciences Care Institute of Medical Sciences (Banjara) Hyderabad, Andhra Pradesh India ISBN 978-1-4471-4314-7 ISBN 978-1-4471-4315-4 (eBook) DOI 10.1007/978-1-4471-4315-4 Springer London Heidelberg New York Dordrecht Library of Congress Control Number: 2013934836 © Springer-Verlag London 2013 This work is subject to copyright. 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Printed on acid-free paper Springer is part of Springer Science+Business Media (www.springer.com) To my wife Preface to the Second Edition One of the primary objectives of the fi rst edition of this book was to facilitate under- standing and retention of a complex subject in the least possible time—by breaking the subject matter down into small, easily comprehensible sections: these were pre- sented in a logical sequence as fl ow charts, introducing concepts fi rst, and then gradually building upon them. The aim of the second edition is no different. However, keeping pace with the requirements of busy modern health providers, several changes have been made. Many sections have been completely rewritten and new ones added. The format is now more conventional. For better readability, the size of the print has been enlarged and made uniform throughout the book. In spite of this, the volume has been kept down to a manageable size. My thanks are due to Liz Pope, Senior Editorial Assistant; to Grant Weston, Senior Editor, who was involved with my other books as well; to my colleague MA Aleem, for his valuable advice; and to my readers who found the time to provide valuable feedback—much of which is re fl ected in this second edition. Hyderabad Ashfaq Hasan, M.D India Preface to the First Edition [Blood gas analysis is] the…single most helpful laboratory test in managing respiratory and metabolic disorders. [It is]… imperative to consider an ABG for virtually any symptom…, sign…, or scenario… that occurs in a clinical setting, whether it be the clinic, hospital, or ICU.1 For the uninitiated, the analysis of blood gas can be a daunting task. Hapless medical students, badly constrained for time, have struggled ineffectively with Hasselbach’s modi fi cation of the Henderson equation; been torn between the Copenhagen and the Boston schools of thought; and lately, been confronted with the radically different strong-ion approach of Peter Stewart. In the modern medical practice, the multi-tasking health provider’s time has become precious—and his attention span short. It is therefore important to retain focus on those aspects of clinical medicine that truly matter. In the handling of those subjects rooted in clinical physiology (and therefore predictably dif fi cult to under- stand), it makes perfect sense, in my opinion, to adopt an ‘algorithmic’ approach. A picture can say a thousand words; a well-constructed algorithm can save at least a hundred—not to say, much precious time—and make for clarity of thinking. I have personally found this method relatively painless—and easy to assimilate. The book is set out in the form of fl ow charts in logical sequence, introducing and gradually building upon the underlying concepts. The goal of this book is to enable medical students, residents, nurses and respira- tory care practitioners to quickly grasp the principles underlying respiratory and acid-base physiology, and to apply the concepts effectively in clinical decision mak- ing. Each of these sections, barring a few exceptions, has been designed to fi t into a single powerpoint slide: this should facilitate teaching. 1 Canham EM, Beuther DA. Interpreting Arterial Blood Gases, PCCU on line, Chest.
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