This best-selling emergency department reference is now in its thoroughly updated Fourth Edition. The foremost authorities provide practical information on over 600 clinical problems in a fast-access two-page outline format that's perfect for on-the-spot consultation during care in the emergency department. Coverage of each disorder includes clinical presentation, pre-hospital, diagnosis, treatment, disposition, and ICD-9 coding. Icons enable practitioners to quickly spot the information they need. This edition provides up-to-date information on topics such as emerging infections, new protocols, and new treatments.