Biomedical Science Practice fundamentals OF biomedical science Biomedical Science Practice Experimental and professional skills Edited by Hedley Glencross Institute of Biomedical Science Nessar Ahmed Manchester Metropolitan University Qiuyu Wang Manchester Metropolitan University 1 1 Great Clarendon Street, Oxford ox2 6dp Oxford University Press is a department of the University of Oxford. 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ISBN 978-0-19-953329-9 1 3 5 7 9 10 8 6 4 2 CCoonntteennttss An introduction to the Fundamentals of 3 Communications in laboratory Biomedical Science series x medicine 42 Acknowledgements xiv Georgina Lavender Contributors xv Abbreviations xvi Introduction 42 3.1 Communication and the clinical laboratory 43 1 Biomedical science and 3.2 Communication and confidentiality 48 biomedical scientists 1 3.3 Methods of communication 49 Hedley Glencross 3.4 Data protection 55 Introduction 1 3.5 Record keeping 61 1.1 What is biomedical science? 2 Summary 63 1.2 Biomedical science degree programmes 3 Further reading 63 1.3 What is a biomedical scientist? 4 Questions 64 1.4 Professional skills 6 4 Health and safety 66 1.5 Initial employment as a biomedical Alison Taylor scientist 10 1.6 What do biomedical scientists do? 12 Introduction 66 Summary 18 4.1 Hazards 67 Further reading 19 4.2 Routes of entry into the body by chemical and biological agents 70 Questions 19 4.3 Statutory framework for health and safety 70 4.4 Risk assessment 76 2 Fitness to practise 20 4.5 Control of substances hazardous to health 80 Hedley Glencross 4.6 Fire regulations 83 Introduction 20 4.7 Personal protective equipment 85 2.1 Healthcare regulation 20 4.8 Reporting of Injuries, Diseases and Dangerous 2.2 Health Professions Council 21 Occurrences Regulations 87 2.3 HPC Standards of Conduct, Performance 4.9 Transport regulations 88 and Ethics 24 4.10 Personal health and safety 89 2.4 Renewal of HPC registration 30 4.11 Universal or standard precautions 92 2.5 Institute of Biomedical Science 30 Summary 92 2.6 IBMS Code of Conduct and Good Further reading 93 Professional Practice 31 Questions 93 2.7 IBMS and education 34 5 Statistics and handling data 95 Summary 39 Andrew Blann Further reading 39 Questions 40 Introduction 95 vvii CONTENTS 5.1 Types of information and how to 8.2 Components of a microscope 187 describe them 96 8.3 Magnification 192 5.2 Analysis and interpretation of data 105 8.4 Dark field microscopy 192 5.3 Statistical packages 120 8.5 Phase contrast microscopy 193 Summary 122 8.6 Polarization microscopy 195 Further reading 123 8.7 Fluorescence microscopy 195 Questions 123 8.8 Confocal microscopy 198 6 Preparing and measuring 8.9 Inverted microscopes 199 reagents 125 8.10 Electron microscopy 200 Ian Graham Summary 209 Introduction 125 Further reading 209 Questions 209 6.1 Balances and weighing 126 6.2 Volume measurements and delivery 131 9 Electrochemistry 211 6.3 Pipettors 135 Peter Robinson 6.4 Preparing reagents: concentrations and dilutions 141 Introduction 211 Summary 148 9.1 Basic concepts and definitions 212 Further reading 149 9.2 Principles of electrochemical Questions 149 techniques 213 9.3 Potentiometric techniques 215 7 Samples and sample collection 151 9.4 Voltammetric techniques 225 Joyce Overfield 9.5 Biosensors 228 Introduction 151 Summary 233 7.1 Blood 152 Further reading 233 7.2 Urine 161 Questions 234 7.3 Fluids other than blood and urine 163 10 Radioactivity and radiation 236 7.4 Cytopathology and histopathology samples 167 John Gaffney and Mark Slevin 7.5 Samples for microbiology testing 169 Summary 176 Introduction 236 Further reading 176 10.1 Atomic structure 236 Questions 177 10.2 Types of radioactive decay 238 10.3 Rate of radioactive decay 241 8 Microscopy 179 10.4 Units associated with radioactivity 242 Tony Sims 10.5 Interaction of radiation with matter 243 Introduction 179 10.6 Detection and measurement 8.1 Microscopy and image formation 181 of radioactivity 244 CONTENTS vviiii 10.7 Safety precautions when using 13 Chromatography 311 radioisotopes 247 Qiuyu Wang, Nessar Ahmed, and Chris Smith 10.8 Clinical applications of radioactivity 249 Introduction 311 Summary 254 13.1 Partition or distribution coefficient 312 Further reading 254 13.2 Planar chromatography 314 Questions 255 13.3 Column chromatography 319 11 Spectroscopy 257 13.4 High performance liquid Qiuyu Wang, Helen Montgomery, chromatography 329 Nessar Ahmed, and Chris Smith 13.5 Gas–liquid chromatography 334 Introduction 257 Summary 337 11.1 Radiation and the electromagnetic Further reading 338 spectrum 257 Questions 338 11.2 Interactions between radiation and matter 259 14 Electrophoresis 341 11.3 Radiation, particles, and quanta 260 Qiuyu Wang, Nessar Ahmed, and Chris Smith 11.4 Absorbance 261 Introduction 341 11.5 Absorption spectra 266 14.1 Principles of electrophoresis 341 11.6 Light scattering methods 272 14.2 Factors affecting electrophoretic 11.7 Fluorescence and fluorimetry 273 separations 343 11.8 Nuclear magnetic resonance 14.3 Detection of separated components 345 spectroscopy 274 14.4 Paper or cellulose electrophoresis 348 11.9 Mass spectrometry 279 14.5 Cellulose acetate electrophoresis 349 Summary 287 Further reading 288 14.6 Starch electrophoresis 351 Questions 288 14.7 Polyacrylamide gel electrophoresis 352 14.8 Agarose gel electrophoresis 362 12 Centrifugation 290 14.9 Capillary electrophoresis 367 Qiuyu Wang, Nessar Ahmed, and Chris Smith 14.10 Isoelectric focusing 370 Introduction 290 14.11 Two-dimensional electrophoresis 372 12.1 Basics of centrifugation theory 291 Summary 374 12.2 Types of centrifuges 295 Further reading 374 12.3 Tubes and rotors 298 Questions 375 12.4 Separation methods using centrifuges 299 15 Immunological techniques 377 12.5 Safety and centrifuges 303 Christine Yates 12.6 Examples of clinical centrifugation 305 Introduction 377 Summary 308 Further reading 308 15.1 Outline of the immune system 378 Questions 309 15.2 Synthesis of antibodies in vivo 380 vviiiiii CONTENTS 15.3 Production of polyclonal and monoclonal 17.4 Tracked automation systems and antibodies in vitro 382 the core automated laboratory 470 15.4 Antigen–antibody interactions 385 17.5 Automation in wider laboratory settings 473 15.5 Immunological techniques used in clinical Summary 475 laboratories 389 Further reading 476 Summary 409 Questions 476 Further reading 410 Questions 411 18 Point of care testing 478 Jan Still and Lynda Petley 16 Molecular biology techniques 412 Introduction 478 Qiuyu Wang, Nessar Ahmed, and Chris Smith 18.1 Standards and guidelines 479 Introduction 412 18.2 Advantages and limitations of point of care testing 480 16.1 Structure and properties of macromolecules 413 18.3 POCT committee and POCT policy 484 16.2 Molecular biology-based techniques 422 18.4 Procurement 488 16.3 Isolation of nucleic acids 422 18.5 Evaluating a POCT device 489 16.4 Hydrolysis of nucleic acids 18.6 Use of POCT devices 492 and restriction endonucleases 428 18.7 Connectivity 494 16.5 Gel electrophoresis 434 18.8 Training for POCT 495 16.6 DNA sequencing 435 18.9 Quality and POCT 496 16.7 Blotting techniques 439 18.10 Audit 498 16.8 Enzyme-linked immunosorbent assays 18.11 Problems, incidents, and litigation 499 and fluorescence in situ hybridization 446 Summary 502 16.9 DNA cloning 449 Further reading 502 16.10 DNA microarrays 457 Questions 503 Summary 458 Further reading 459 19 Quality assurance Questions 460 and management 505 Elaine Moore 17 Laboratory automation 461 Introduction 505 Tim James 19.1 Quality control 506 Introduction 461 19.2 Quality management 508 17.1 Benefits of automation 462 19.3 Documentation in the clinical laboratory 512 17.2 Collection of suitable samples 19.4 Standards and regulatory requirements and delivery to the laboratory 465 in the medical laboratory 513 17.3 Specimen reception considerations 19.5 Tools and techniques for continual in the core automated laboratory 467 improvement 517 CONTENTS iixx Summary 524 20.6 Opportunities for self-guided personal development 541 Further reading 524 Questions 525 20.7 Reflective learning 541 20.8 Study skills 542 20 Personal development 526 20.9 Evidence supporting personal Georgina Lavender development 547 Introduction 526 20.10 Performance appraisal and personal development plans 549 20.1 Continuing professional development 528 Summary 550 20.2 Opportunities for personal development Further reading 551 in the workplace 529 Questions 551 20.3 Training and development 532 20.4 Professional bodies and personal Glossary 553 development 534 Index 563 20.5 Commercial concerns and personal development 540
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