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Mosby's Pocket Guide to Fetal Monitoring - E-Book

Mosby's Pocket Guide to Fetal Monitoring - E-Book

Lisa A. Miller | David A. Miller | Rebecca L. Cypher

(2017)

Additional Information

Book Details

Abstract

Authored by a nurse-midwife, a perinatologist, and a nurse, Mosby’s Pocket Guide to Fetal Monitoring: A Multidisciplinary Approach, 8th Edition is an evidence-based resource on fetal heart rate monitoring for all clinicians — whether you are a nurse, a physician or a midwife, a student or an instructor, this guide has information crucial to your practice.  Designed specifically for the clinical environment, it provides a single source for interpretation and management of electronic fetal monitoring – in labor and delivery, the intensive care unit, inpatient antepartum units, or the obstetric or midwifery office.

  • Pocket-sized, two-color design offers portability and easy access to information.
  • Descriptions of the relationship between fetal heart rate and fetal acidemia alert you to important considerations in the care of the laboring patient.
  • Patient safety and risk management strategies with case study illustrations and legal commentary include guidelines for providing safe and competent care.
  • Coverage of innovative practices supports a culture of patient safety and improved quality outcomes in high-reliability perinatal units addressing:
    • Use of a common language for fetal heart rate patterns with a common construct for interpretation
    • Emergency preparedness (multidisciplinary mock emergencies, simulations, debriefing after critical events, and exemplary practice)
    • Human factor issues (step-by-step process to improve communication, situational awareness, no-fault/just culture, teamwork, and collegiality)
  • Selected FHR Tracings and Cases: Interpretation and Documentation appendix provides an important reference tool for all clinicians.
  • Expert author team with international presence.
  • NEW! Two simple principles of interpretation that are evidence- and consensus-based.
  • NEW! Content on Category II tracing management prepares you to assist in delivery decisions.
  • NEW! Neonatal encephalopathy content keeps you in the know.
  • UPDATED! Revised chapters feature the most up-to-date information.

Table of Contents

Section Title Page Action Price
Front Cover Cover
Inside Front Cover ES2
Mosby's Pocket Guide to Fetal Monitoring: A Multidisciplinary Approach i
Copyright ii
Reviewers iii
Acknowledgments iv
Preface v
Description v
Features vi
Organization vi
Contents ix
Chapter 1: A Brief History of Fetal Monitoring 1
Historical overview 1
Randomized trials of electronic fetal monitoring 2
Research at the end of the twentieth century 4
Fetal monitoring in the twenty-first century 5
Summary 6
References 6
Chapter 2: Physiologic Basis for Electronic Fetal Heart Rate Monitoring 10
Transfer of oxygen from the environment to the fetus 10
External Environment 11
Maternal Lungs 11
Maternal Blood 12
Maternal Heart 13
Maternal Vasculature 14
Uterus 15
Placenta 15
Intervillous Space Pao2 18
Intervillous Space Blood Flow 19
Chorionic Villous Surface Area 19
Diffusion Across the “Blood-Blood” Barrier 20
Interruption of Placental Blood Vessels 20
Summary of Placental Causes of Disrupted Oxygenation 20
Fetal Blood 21
Umbilical Cord 21
Fetal response to interrupted oxygen transfer 23
Mechanisms of Injury 23
Injury Threshold 24
Summary 25
References 26
Chapter 3: Methods and Instrumentation 27
Intermittent auscultation of fetal heart rate 27
Description 27
Leopold’s Maneuvers 30
Utilization, Procedure, and Frequency of Intermittent Auscultation 32
Documentation of Auscultated Fetal Heart Rate 33
Interpretation of Auscultated Fetal Heart Rate 35
Benefits and Limitations of Auscultation 35
Benefits 35
Limitations 35
Electronic fetal monitoring 36
Overview 36
Converting Raw Data Into a Visual Display of FHR 37
External mode of monitoring 39
Ultrasound Transducer 39
Description 39
Placement of Ultrasound Transducer 40
Tocotransducer 42
Description 42
Placement of Tocotransducer 42
Advantages and Limitations of External Transducers 44
Advantages 44
Limitations 44
Internal mode of monitoring 44
Fetal Spiral Electrode 44
Description 44
Contraindications 45
Situations Requiring Caution 46
Placement of Fetal Spiral Electrode 46
Intrauterine Pressure Catheter 47
Description 47
Placement of Intrauterine Pressure Catheter 48
Advantages and Limitations of Internal Monitoring 50
Advantages 50
Limitations 51
Display of fetal heart rate, uterine activity, and other information 51
Monitor Tracing Scale 52
Monitoring Multiple Gestations 52
Artifact Detection and Signal Ambiguity (Coincidence) with MHR 56
Telemetry 61
Troubleshooting the Monitor 61
Computerized Perinatal Data Systems 64
Data-input Devices 68
Integrated abdominal fetal heart rate and uterine activity monitoring 69
Summary 72
References 72
Chapter 4: Uterine Activity Evaluation and Management 75
Assessment methods: palpation and electronic monitoring 75
Manual Palpation 75
Electronic Monitoring of Uterine Activity 76
Electronic Display of Uterine Activity 78
Redefining normal labor 80
Defining adequate uterine activity 81
Defining excessive uterine activity 85
Common Underlying Causes of Excessive Uterine Activity 91
Interventions to Decrease Excessive Uterine Activity 91
New trends in labor support and management 91
Latent Phase Abnormalities 92
Management Strategies for Latent Phase Disorders 1 93
Active-Phase Abnormalities 93
Management Strategies for Active-Phase Disorders 2 94
Second-Stage Abnormalities 94
Uterine activity and oxytocin use 95
Summary 98
References 99
Chapter 5: Pattern Recognition and Interpretation 103
The evolution of standardized FHR definitions 103
The 2008 NICHD Consensus Report 103
Evidence-based Interpretation of FHR Patterns 106
NICHD definitions: general considerations 108
Five Essential Components of an FHR Tracing 109
Definitions, physiology, and interpretation of specific FHR patterns 109
Baseline Rate 109
Definition 109
Physiology 111
Categories of baseline rate 111
Tachycardia 111
Definition 111
Interpretation 111
Bradycardia 113
Definition 113
Interpretation 113
Baseline FHR Variability 114
Definition 114
Physiology 117
Categories of baseline variability 117
Absent Variability 117
Definition 117
Interpretation 117
Minimal Variability 119
Chapter 6: Intrapartum Management of the Fetal Heart Rate Tracing 144
Fundamental principles 144
Standard of Care 145
Confirm FHR and Uterine Activity 146
Evaluate FHR Components 146
A Standardized “ABCD” Approach to FHR Management 148
A: Assess the Oxygen Pathway and Consider Other Causes of FHR Changes 151
B: Begin Corrective Measures as Indicated 152
Supplemental Oxygen 152
Maternal Position Changes 152
Intravenous Fluid Administration 153
Correct Maternal Blood Pressure 153
Reduce Uterine Activity 153
Alter Second-stage Pushing Technique 154
Amnioinfusion 154
Reevaluate the FHR Tracing 155
C: Clear Obstacles to Rapid Delivery 155
D: Delivery Plan 156
Expectant Management Versus Delivery 156
Other methods of fetal monitoring 158
Intrapartum Fetal Scalp pH and Lactate Determination 158
Fetal Scalp Stimulation and Vibroacoustic Stimulation 158
Computer Analysis of FHR 159
Fetal Pulse Oximetry 159
ST Segment Analysis 159
Umbilical Cord Blood Gas Analysis 161
Summary 163
References 163
Chapter 7: Influence of Gestational Age on Fetal Heart Rate 168
The preterm fetus 168
Baseline Fetal Heart Rate in the Preterm Fetus 170
Baseline Variability in the Preterm Fetus 170
Periodic and Episodic Heart Rate Changes in the Preterm Fetus 170
Accelerations 170
Decelerations 172
Behavioral States in the Preterm Fetus 172
Preterm Uterine Activity 175
Tocolytic Therapy and Effect on Fetal Heart Rate 175
Indomethacin 177
Nifedipine 177
Beta mimetics 177
Magnesium Sulfate 178
Antenatal Corticosteroid Therapy 178
Monitoring the Preterm Fetus 180
Antepartum Fetal Assessment 180
Triage and Inpatient Antepartum Monitoring 180
Intrapartum Monitoring 181
The late term and postterm fetus 181
Fetal Assessment 182
Risks Associated with Postterm Pregnancy 182
Postmaturity or Dysmaturity Syndrome 182
Oligohydramnios 182
Meconium 183
Management of Postterm Pregnancy 183
Summary 183
References 184
Chapter 8: Fetal Assessment in Non-obstetric Settings 189
Pregnancy anatomy and physiology 189
Emergency department assessment and care 191
Pregnant trauma victim assessment and care 193
Maternal–Fetal Transport, Assessment, and Care 193
Primary and Secondary Survey in the Emergency Department 196
Primary Survey 196
Secondary Survey 197
Emergent and Perimortem Cesarean Birth 199
Stabilization and Discharge 201
Non-obstetric surgical procedures: maternal–fetal assessment and care 201
Intraoperative Maternal–Fetal Assessment 202
Tocolytic Agents and Antenatal Corticosteroids 205
Surgery When Gestation Is Greater Than 24 Weeks 205
Federal law and triage 206
Summary 206
References 206
Chapter 9: Antepartum Fetal Assessment 210
Comparing antepartum testing methods 210
Contraction stress test and oxytocin challenge test 214
Interpretation and Management 214
Advantages and Limitations 215
Procedures for Contraction Stress Testing 216
Procedure for Nipple-Stimulated Contraction Stress Test 216
Procedure for Oxytocin Challenge Test 216
The nonstress test 217
Interpretation and Management 218
Advantages and Disadvantages 219
The biophysical profile 220
Interpretation and Management 220
Advantages and Limitations 221
The modified biophysical profile 222
Interpretation and Management 222
Advantages and Limitations 223
Fetal movement counts 224
Interpretation and Management 224
Umbilical artery doppler velocimetry 224
Biochemical assessment 225
Amniocentesis for Fetal Lung Maturity 225
Lecithin-to-Sphingomyelin Ratio 226
Foam Stability Test 227
Phosphatidylglycerol 227
Fluorescence Polarization (FLM-II Assay) 228
Lamellar Body Count 228
Summary 228
References 229
Chapter 10: Patient Safety, Risk Management, and Documentation 232
Human error 232
Error prevention and risk reduction 235
High-Reliability Perinatal Units 235
Guidelines to Promote Safety and Reduce Risks 236
Policies, Procedures, and Protocols 236
Competency 236
Fetal Monitoring 237
Neonatal Resuscitation 237
Organizational Resources and Systems to Support Timely Interventions 237
Perinatal Teamwork: Collaboration and Communication 239
Interdisciplinary Case Reviews 240
Chain of Communication 240
Joint Nurse/Provider Education 241
Adverse outcomes and litigation 241
Disclosure of Unanticipated Outcomes 242
Elements of Malpractice 242
EFM, IA, and Informed Consent 243
Notification and Clinical Review 244
Reporting of Sentinel Events 245
Documentation 245
Components of Care: Assessment, Communication, Documentation 246
Deposition Excerpt 249
Documentation Issues Specific to Electronic Fetal Monitoring 250
Components of Electronic Fetal Monitoring Evaluation 251
Use of FHR Categories 251
Documentation of Uterine Activity 252
Quantification of Decelerations 252
Frequency of Electronic Fetal Monitoring Assessment Versus Frequency of Electronic Fetal Monitoring Documentation 253
Electronic Medical Records and Information Systems 254
Record Storage and Retrieval 257
Summary 258
References 259
Chapter 11: Obstetric Models and Electronic Fetal Monitoring in Europe 264
Models of care 264
Electronic fetal monitoring (EFM)– cardiotocography (CTG) 266
Quality of EFM-CTG 266
Guidelines for Terminology and Interpretation 267
Examples of 1- and 2-cm CTG Tracings 268
Methods of Determining Fetal Acid–Base Status 268
Fetal Scalp Blood Sampling for pH 272
Fetal Scalp Blood Sampling for Lactate 273
ST Analysis of the Fetal ECG 273
Summary 274
References 274
Appendix A Amnioinfusion 278
Indications for amnioinfusion 279
Equipment and supplies 279
Procedure 279
Patient care 280
Appendix B: Instructions for Reviewing Appendix B FHR Tracings 281
Key for Appendix B FHR tracings 281
Appendix B Self-Assessment 312
Answer Key for Self Assessment 317
Index 318