impact wrenches
diagnostic samples from the patient to the laboratory the impact of preanalytical variables on the quality of laboratory results
this fourth updated edition contains the latest developments in preanalytical knowledge . an international team of authors summarizes the information on biological influences analytical interferences and on the variables affecting the collection transport and storage as well as preparation of samples . in so doing they cover age gender race pregnancy diet exercise and altitude plus the effects of stimulants and drugs . national and international standards are described for sampling procedures transport sample identification and all safety aspects while quality assurance procedures are shown for total laboratory management . p in addition this practical book is rounded off by a glossary explaining all terms being used . p this book is a must have for everyone involved in patient care and using or performing laboratory tests .