User's Manual
Table Of Contents
- Introduction
- What's New
- What's New in Release J.3
- Avalon CL Transducer System
- Support For Use of Maternal Cableless Measurement Devices
- Maternal Temperature Measurement
- Manually Entered Maternal Temperature Measurements
- New Design for the User Interface
- New SmartKeys
- Coincidence INOP Tone
- Increased Internal Back-up Memory
- USB Interface
- Flexible Nurse Call Interface
- DHCP Support
- Data Export Support
- NBP Configurable Measurement Sequence
- Alarms Enhancements
- Alarm Reminder
- Auto Free
- What's New in Release G.0
- Battery Option and Patient Transport Improvements for the Avalon FM20 and FM30
- Maternal Pulse from Toco MP Transducer
- Non Stress Test (NST) Analysis as Clinical Decision Support (CDS) Application
- FHR Sound Source
- FHR Numeric Display
- Improved FHR and DFHR Label Concept
- New SmartKeys
- Trace Separation On/Off Operation
- NBP
- Alarms
- CCV INOP
- New Demographic Fields
- Recorder
- Stored Data Recording
- FHR Sound Volume
- Avalon CTS
- What's New in Release J.3
- Basic Operation
- Supported Measurements
- Avalon FM20 and FM30
- Avalon FM40 and FM50
- Avalon CL Transducer System
- Getting to Know Your Avalon FM20/FM30
- Getting to Know Your Avalon FM40/FM50
- Transducers
- Getting to Know Your Avalon CL
- Cableless Transducers
- Radio Range of CL Transducers
- The CL transducers have a operating range around the base station of at least 70 m in the line of sight. Obstructions as walls, metal doors, elevators and other environment structures can lead to signal loss. The Tele symbol indicator and the Tele In...
- Connector Cap for the CL Toco+ MP Transducer
- Cableless Transducer LED Indication
- CL Transducer Battery
- Audio Signal CL Transducers
- CL Pods
- Operating and Navigating
- Operating Modes
- Automatic Screen Layouts
- Settings
- Preparing to Monitor
- Switching the Monitor to Standby
- After Monitoring
- Disconnecting from Power
- Power On/Power Off Behavior
- Monitoring After a Power Failure
- Troubleshooting
- FM20/30 Battery Option
- Alarms
- Patient Alarms and INOPs
- Admitting and Discharging
- Non-Stress Test Timer
- Non-Stress Test Report
- Cross-Channel Verification (CCV)
- Monitoring FHR and FMP Using Ultrasound
- Technical Description
- Limitations of the Technology
- Misidentification of MHR as FHR
- What You Need
- Cableless Monitoring - Important Considerations
- Preparing to Monitor
- Selecting Fetal Heart Sound
- Changing the Fetal Heart Sound Volume
- Fetal Movement Profile
- Troubleshooting
- Additional Information
- Testing Ultrasound Transducers
- Monitoring Twin FHRs
- Monitoring Triple FHRs
- Fetal Heart Rate Alarms
- Monitoring Uterine Activity Externally
- Monitoring Uterine Activity Internally
- Monitoring FHR Using DECG
- Monitoring Noninvasive Blood Pressure
- Introducing the Oscillometric Noninvasive Blood Pressure Measurement
- Preparing to Measure Noninvasive Blood Pressure
- Starting and Stopping Measurements
- Enabling Automatic Mode and Setting Repetition Time
- Enabling Sequence Mode and Setting Up The Sequence
- Choosing the Alarm Source
- Assisting Venous Puncture
- Calibrating NBP
- Troubleshooting
- Monitoring Maternal Temperature
- Monitoring SpO2
- Monitoring Maternal Heart / Pulse Rate
- Printing the ECG Waveform
- Paper Save Mode for Maternal Measurements
- Recovering Data
- Care and Cleaning
- Maintenance
- Accessories and Supplies
- Specifications and Standards Compliance
- Environmental Specifications
- Physical Specifications
- Performance Specifications
- Recorder Specifications
- Compatible External Displays: FM40/FM50 Only
- Manufacturer's Information
- Trademark Acknowledgment
- Regulatory and Standards Compliance
- Safety and Performance
- Safety Tests Fetal Monitor
- Electromagnetic Compatibility (EMC)
- EMC Testing
- Reducing Electromagnetic Interference
- System Characteristics
- Electromagnetic Emissions and Immunity
- Electromagnetic Immunity
- Radio Compliance Notice
- Finding Recommended Separation Distances
- Recommended Separation Distances from Other RF Equipment
- Radio Frequency Radiation Exposure Information
- Environment
- Monitoring After a Loss of Power
- ESU, MRI and Defibrillation
- Cardiac Pacemakers and Electrical Stimulators
- Fast Transients/Bursts
- Symbols on the System
- Default Settings Appendix
11 Monitoring FHR and FMP Using Ultrasound
168
Selection of Literature References on Artifacts
___________________________________________________________
Fetal Monitoring, A Multidisciplinary Approach, Seventh edition
Susan M. Tucker, Lisa A. Miller, David A. Miller
Mosby Inc. 2009, ISBN 978-0-323-08352-2
___________________________________________________________
Baseline Rate 170 - Tachycardia
Baseline Variability Moderate
Accelerations Unable to determine
Decelerations Absent
Contractions Absent
Artifact Maternal insertion, noise
Comment The fetus has an elevated baseline rate of about 170 bpm with minimal to moderate
variability. The ability to assess fetal status is limited because about half of the tracing
displays the maternal heart rate.
Remediation The application of a maternal transducer (ECG or pulse oximeter) will likely resolve any
possible confusion with the tracing. Repositioning the transducer may produce a more
reliable tracing. Consideration must also be given to applying a fetal scalp electrode.
Maternal-Switching (Maternal Insertion)
Noisy/Erratic Signal and Dropout
Baseline Rate 140
Baseline Variability Moderate
Accelerations Present
Decelerations Absent
Contractions Minimal
Artifact Noisy signal, drop-out
Comment Reassuring tracing. Note that there is episodic drop out of the signal with discontinuity of
the fetal tracing.
Remediation Either improving the position of the transducer or the application of a fetal scalp
electrode will reduce the amount of artifact in the tracing.