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Emergency Medicine, An Issue of Physician Assistant Clinics, E-Book

Emergency Medicine, An Issue of Physician Assistant Clinics, E-Book

Fred Wu | Michael E. Winters

(2017)

Additional Information

Book Details

Abstract

This issue of Physician Assistant Clinics, guest edited by Fred Wu and Dr. Michael E. Winters, is devoted to Emergency Medicine. Articles in this outstanding issue include: Anaphylaxis; Back Pain Emergencies; Lethal Rashes; Pregnancy Disasters in the First Trimester; Current Concepts in the Evaluation of the Febrile Child; Skin and Soft Tissue Infections; Pitfalls in Wound Management; Ocular Emergencies; Deadly Drug Ingestions; Low Risk Chest Pain; Headache Mistakes You Don't Want to Make; Asymptomatic Hypertension in the Emergency Department; Orthopedic Pearls and Pitfalls; and Antibiotic Stewardship: Choosing Wisely.

Table of Contents

Section Title Page Action Price
Front Cover Cover
Emergency Medicine i
Copyright\r ii
CME Accreditation Page iii
PROGRAM OBJECTIVE iii
TARGET AUDIENCE iii
LEARNING OBJECTIVES iii
ACCREDITATION iii
DISCLOSURE OF CONFLICTS OF INTEREST iii
UNAPPROVED/OFF-LABEL USE DISCLOSURE iii
TO ENROLL iii
METHOD OF PARTICIPATION iv
CME INQUIRIES/SPECIAL NEEDS iv
Contributors v
CONSULTING EDITOR v
EDITORS v
AUTHORS v
Contents ix
Foreword: Emergency Medicine ix
Preface: High-Risk Emergency Medicine ix
Anaphylaxis ix
Back Pain Emergencies: Easily Missed Diagnoses ix
Lethal Rashes ix
Pregnancy Disasters in the First Trimester x
Current Concepts in the Evaluation of the Febrile Child x
Skin and Soft Tissue Infections: Causes and Treatments x
Pitfalls in Wound Management x
Deadly Drug Ingestions xi
Asymptomatic Hypertension in the Emergency Department xi
Orthopedic Pearls and Pitfalls xi
Antibiotic Stewardship Choosing Wisely xi
Headache Mistakes You Do Not Want to Make xii
Ocular Emergencies xii
Low-Risk Chest Pain: What Is the Evidence? xii
PHYSICIAN ASSISTANT CLINICS\r xiii
FORTHCOMING ISSUES xiii
October 2017 xiii
January 2018 xiii
April 2018 xiii
RECENT ISSUES xiii
April 2017 xiii
January 2017 xiii
October 2016 xiii
Foreword: Emergency Medicine\r xv
Preface:\rHigh-Risk Emergency Medicine xvii
Anaphylaxis 345
Key points 345
INTRODUCTION 345
Clinical Features 347
MANAGEMENT 350
Epinephrine 350
Second-Line Medications 351
Intravenous Fluids 352
Vasopressors 352
DISPOSITION 353
SUMMARY 353
REFERENCES 354
Back Pain Emergencies 357
Key points 357
INTRODUCTION 357
HISTORY AND PHYSICAL EXAMINATION 358
History of Present Illness 358
Red Flags for Back Pain 358
Physical Examination 359
CAUDA EQUINA SYNDROME 360
SPINAL EPIDURAL ABSCESS 362
AORTIC CATASTROPHES 363
Aortic Dissection 363
Abdominal Aortic Aneurysm 366
SUMMARY 367
REFERENCES 368
Lethal Rashes 371
Key points 371
STAPHYLOCOCCAL TOXIC SHOCK SYNDROME 371
Diagnosis 372
Treatment 373
MENINGOCOCCEMIA 374
Diagnosis 375
Treatment 376
ERYTHEMA MULTIFORME 377
Clinical Manifestations 378
Diagnosis 378
Treatment 378
STEVENS–JOHNSON SYNDROME/TOXIC EPIDERMAL NECROLYSIS 379
Risk Factors 379
Clinical Features 380
Diagnosis 380
Treatment 380
SUMMARY 381
REFERENCES 382
Pregnancy Disasters in the First Trimester 385
Key points 385
INTRODUCTION 385
THE BASICS 386
PHYSIOLOGIC CHANGES IN PREGNANCY 386
EMERGENCY DEPARTMENT EVALUATION OF PREGNANT PATIENTS 386
Triage and Initial Management 386
History of Present Illness 387
Review of Systems 388
Past Medical History 388
Physical Examination 389
DIFFERENTIAL DIAGNOSIS 389
Ectopic Pregnancy 389
Spontaneous Abortion 392
Appendicitis 392
THE EVALUATION 392
Laboratory Evaluation 392
Ultrasonography 393
SPECIAL CIRCUMSTANCES OF EARLY PREGNANCY 395
Hyperemesis Gravidarum 395
SUMMARY 398
REFERENCES 398
Current Concepts in the Evaluation of the Febrile Child 401
Key points 401
INTRODUCTION 401
FEVER 402
EVALUATION OF THE FEBRILE CHILD 402
Method of Fever Measurement 402
Collection of the Clinical History 403
Physical Examination 404
Diagnostic Evaluation 404
Complete Blood Cell Count 406
C-Reactive Protein 406
Procalcitonin 406
Blood Culture 406
Urinalysis and Urine Culture 406
Chest Radiograph 406
Cerebral Spinal Fluid Analysis 407
Respiratory Virus Testing 407
BIOSIGNATURE ANALYSIS 407
FEVER BY AGE 408
0 to 28 Days Old 408
29 to 90 Days Old 408
90 Days to 36 Months Old 409
IMMUNIZATIONS 409
CLINICAL DECISION GUIDES 410
Philadelphia Protocol 411
Rochester Criteria 413
Boston Criteria 413
“Step by Step” Approach 413
TREATMENT, DISPOSITION, AND FOLLOW-UP OF THE FEBRILE CHILD 414
Treatment 0 to 28 Days Old 414
Treatment 29 to 90 Days Old 415
Treatment 90 Days to 36 Months of Age 416
SUMMARY 418
REFERENCES 419
Skin and Soft Tissue Infections 421
Key points 421
INTRODUCTION 421
MICROBIOLOGY 422
CELLULITIS AND ERYSIPELAS (NONPURULENT SKIN AND SOFT TISSUE INFECTIONS) 422
Clinical Presentation 422
Diagnosis 422
Treatment and Disposition 423
ABSCESS (PURULENT SKIN AND SOFT TISSUE INFECTIONS) 425
Clinical Presentation 425
Diagnosis 425
Treatment and Disposition 426
NECROTIZING INFECTION 427
Clinical Presentation 427
Diagnosis 428
Treatment and Disposition 428
SUMMARY 428
REFERENCES 429
Pitfalls in Wound Management 435
Key points 435
INTRODUCTION 435
METHODS TO PREVENT WOUND INFECTION 435
ANTIBIOTIC PROPHYLAXIS 438
SELECTING AN AGENT 440
TETANUS PROPHYLAXIS 440
EVALUATION AND MANAGEMENT OF ANIMAL BITES 441
THERMAL BURNS 442
CLASSIFYING DEPTH OF BURNS 442
TREATMENT OF BURNS 444
REFERENCES 447
Deadly Drug Ingestions 449
Key points 449
INITIAL MANAGEMENT 449
DIAGNOSIS OF DEADLY DRUGS 451
PHYSICAL EXAMINATION TOXIDROMES 452
Anticholinergic Toxidrome 452
Cholinergic Toxidrome 453
Opioid Toxidrome 453
Sympathomimetic Toxidrome 454
Hyperthermic Toxidromes 454
Sedative Hypnotic Toxidrome 455
LABORATORY TESTING CONSIDERATIONS 455
Toxins Inducing Osmolar Gap 456
Toxins Inducing Anion Gap Metabolic Acidosis 456
ELECTROCARDIOGRAPHIC TOXIC EFFECTS 456
QT Prolongation 456
QRS Prolongation 457
Bradycardia 457
ONE PILL CAN KILL 457
DECONTAMINATION 457
Gastrointestinal Decontamination 457
Gastric lavage 458
Activated charcoal 458
Whole-bowel irrigation 459
Enhanced Elimination 459
DISPOSITION 459
SUMMARY 460
REFERENCES 460
Asymptomatic Hypertension in the Emergency Department 465
Key points 465
INTRODUCTION 465
DEFINITIONS 466
CLASSIFICATIONS OF HYPERTENSION 466
Chronic Hypertension 467
Hypertensive Emergency 467
Signs and Symptoms 467
Diagnostic Evaluation 468
Indications for Initiation of Antihypertensive Medications in the Emergency Department 470
SUMMARY 470
REFERENCES 471
Orthopedic Pearls and Pitfalls 473
Key points 473
INTRODUCTION 473
EVALUATION CONSIDERATIONS 474
History 474
Physical Examination 474
Inspection 474
Neurovascular function 474
Palpation 474
Range of motion 474
CONSULTATION CONSIDERATIONS 474
Open Fracture 475
Irreducible Fracture/Dislocation 475
Neurovascular Compromise 475
Compartment Syndrome 475
Need for Surgical Intervention 475
CRITICAL UPPER EXTREMITY ORTHOPEDIC EMERGENCIES 476
Sternoclavicular Dislocation 476
Posterior Shoulder Dislocations 476
Elbow Fracture/Dislocation: The “Terrible Triad” 477
Scaphoid Fractures 477
CRITICAL LOWER EXTREMITY ORTHOPEDIC EMERGENCIES 478
Hip Fracture Radiographic Considerations 478
Knee Dislocation 478
Maisonneuve Fracture 479
Lisfranc Injury 479
COMPARTMENT SYNDROME 480
Clinical Features 480
Diagnosis 481
Management 482
SEPTIC ARTHRITIS 482
Clinical Presentation 482
Diagnosis 483
Management 483
PEDIATRIC ORTHOPEDIC CONSIDERATIONS 484
SUMMARY 485
REFERENCES 485
Antibiotic Stewardship Choosing Wisely 489
Key points 489
INTRODUCTION 489
ACUTE OTITIS MEDIA 490
Diagnosis 490
Antibiotic Therapy Versus Observation 490
Duration of Therapy 491
PHARYNGITIS 491
Epidemiology and Diagnosis 491
Antibiotic Therapy 491
ACUTE BRONCHITIS 492
Diagnosis 493
Treatment 493
SINUSITIS 493
Epidemiology and Diagnosis 493
Therapy 494
SEPSIS 494
Definition 494
Diagnosis and Antibiotic Therapy 495
SUMMARY 498
REFERENCES 498
Headache Mistakes You Do Not Want to Make 503
Key points 503
OBJECTIVES 503
SUBARACHNOID HEMORRHAGE 504
Epidemiology 505
Clinical Presentation 506
Treatment 507
CEREBRAL VENOUS SINUS THROMBOSIS OR CEREBRAL VENOUS THROMBOSIS 508
Epidemiology 508
Clinical Presentation 508
Diagnostic Studies 508
Treatment 509
GIANT CELL ARTERITIS OR TEMPORAL ARTERITIS/CRANIAL ARTERITIS 509
Background 509
Epidemiology 510
Clinical Presentation 510
Diagnostic Studies 510
Treatment 510
MENINGITIS/ENCEPHALITIS 511
Epidemiology 511
Clinical Presentation 511
Diagnostic Studies 512
Treatment 512
SUMMARY 515
REFERENCES 516
Ocular Emergencies 519
Key points 519
INTRODUCTION 519
INITIAL EMERGENCY DEPARTMENT EVALUATION 519
ACUTE MONOCULAR VISION LOSS 522
Amaurosis Fugax 523
Retinal Artery Occlusion 523
Central Retinal Vein Occlusion 524
Giant Cell Arteritis 525
Retinal Detachment 526
Optic Neuritis 526
INFECTIOUS CONDITIONS 527
Endophthalmitis 527
Herpes Simplex Keratitis 529
CORNEAL INJURIES 530
Corneal Abrasion 530
Corneal Ulcer 530
ADDITIONAL OCULAR EMERGENCIES 531
Acute Angle Closure Glaucoma 531
Globe Rupture 532
SUMMARY 533
REFERENCES 533
Low-Risk Chest Pain 537
Key points 537
INTRODUCTION 537
CAUSES OF CHEST PAIN 538
ACUTE CORONARY SYNDROME 540
PATHOPHYSIOLOGY OF ACUTE CORONARY SYNDROME 540
LOW-RISK CHEST PAIN 541
EVALUATION 542
History 542
Physical Examination 542
Risk Factors 542
DIAGNOSIS 544
Cardiac Enzymes 544
Electrocardiography 545
Imaging 546
PATIENT DISPOSITION AND SCORING SYSTEMS 546
The History, Electrocardiogram, Age, Risk Factors, Troponin Score 549
SUMMARY 553
REFERENCES 553