tailieunhanh - THE CARDIOVASCULAR  SYSTEM – PHYSIOLOGY,  DIAGNOSTICS AND  CLINICAL IMPLICATIONS  

The second chapter case study by Rosso et al. presents a medical survey that tests professional drivers for the presence of various psychoactive substances. Positives were identified by using a commercially available immunoassay rapid kit test which indicates consumption of psychoactive drugs. This is of interest and important since the dependence on drugs may pose a risk to drivers in their profession affecting their reaction time and driving judgment. This is one of the first and important contributions to the literature in this area. The study is of high importance as drivers under the influence of psychoactive drugs may endanger themselves or others if impaired at the jobsite | THE CARDIOVASCULAR SYSTEM - PHYSIOLOGY DIAGNOSTICS AnD CLINICAL IMPLICATIONS Edited by David C. Gaze The Cardiovascular System - Physiology Diagnostics and Clinical Implications Edited by David C. Gaze Published by InTech Janeza Trdine 9 51000 Rijeka Croatia Copyright 2012 InTech All chapters are Open Access distributed under the Creative Commons Attribution license which allows users to download copy and build upon published articles even for commercial purposes as long as the author and publisher are properly credited which ensures maximum dissemination and a wider impact of our publications. After this work has been published by InTech authors have the right to republish it in whole or part in any publication of which they are the author and to make other personal use of the work. Any republication referencing or personal use of the work must explicitly identify the original source. As for readers this license allows users to download copy and build upon published chapters even for commercial purposes as long as the author and publisher are properly credited which ensures maximum dissemination and a wider impact of our publications. Notice Statements and opinions expressed in the chapters are these of the individual contributors and not necessarily those of the editors or publisher. No responsibility is accepted for the accuracy of information contained in the published chapters. The publisher assumes no responsibility for any damage or injury to persons or property arising out of the use of any materials instructions methods or ideas contained in the book. Publishing Process Manager Iva Simcic Technical Editor Teodora Smiljanic Cover Designer InTech Design Team First published April 2012 Printed in Croatia A free online edition of this book is available at Additional hard copies can be obtained from orders@ The Cardiovascular System - Physiology Diagnostics and Clinical Implications Edited by David C. Gaze p.