Welch Allyn Acuity and Mobile Acuity LT Central Monitoring Systems - User Manual - Manual (Page 56)

52 Chapter 4 Adjust monitoring settings and patient information Welch Allyn Acuity Central Monitoring System
Arrhythmia Analysis option
The Acuity System Arrhythmia Analysis module analyzes patient ECG data to detect
specific changes in cardiac rhythms. The system uses up to three ECG leads to detect
normal beats, ventricular beats and to analyze arrhythmias.
The Arrhythmia Analysis options are not intended for use on neonatal patients, and
arrhythmia analysis is disabled in the Neonate mode.
Arrhythmia Analysis terms
These terms are used throughout this section:
alarm level. A setting that indicates an individual arrhythmia type’s priority and associated
audible alarm tone. Alarm level designations can be lethal, high, medium, low, or off.
arrhythmia alarm limit. An appropriate numeric threshold for an arrhythmia type.
arrhythmia type. A specific arrhythmia category.
artifact. A disturbance or movement of the patient or sensors that adds errors to
measured parameters. Caused by muscle movement or shivering, electrical
interference, or vibration.
event. The occurrence of an arrhythmia event, arrhythmia or ST-segment relearn event,
learning done event or snapshot printout event.
event marker. A notation that indicates the time when an event occurred. Event markers
appear in most review windows and in some printouts. Event notations are
♥
for
arrhythmia alarms,
♥
for arrhythmia events, and
▼ for relearn and snapshot events.
lethal arrhythmia. The Acuity System defines VFib (ventricular fibrillation), asystole, and
VTach (ventricular tachycardia) as lethal arrhythmias. In the Arrhythmia Alarms Setup
window, the alarm level for these arrhythmia types is permanently set to LETHAL,
and alarming cannot be turned off.
PVC. Premature ventricular contraction.