Welch Allyn Medical Diagnostic Equipment Medical Alarms 8.1x Manual Do Utilizador

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Chapter 4   Adjust monitoring settings and patient information
Welch Allyn  Acuity Central Monitoring System
WARNING   In Acuity Systems that include an Arrhythmia option, a relearn 
function causes the system to learn a patient's normal ECG rhythm. If the 
system learns an abnormal rhythm or learns a rhythm during noise, it designates 
the learned rhythm as a normal. Thereafter, rhythms of this type might not trigger 
an alarm.
A relearn event can be initiated by a user or by the system. System relearns are in 
response to these circumstances:
Patient connection
Lead change or failure
System restart
During an arrhythmia relearn event, the system posts a RELEARN alert in the 
patient's Virtual Monitor and Waveform Window. Carefully observe a patient 
during an Acuity System learning period. During learning, the system detects 
only VFib and asystole arrhythmias. 
After a relearn event, "Relearn" and "Learning Done" event markers (
▼) appear in 
most of the patient's review windows and some printouts. After relearn, carefully 
evaluate the new ECG rhythm and the current ST segment for all active leads to 
ensure that the system learned an appropriate rhythm. For evaluation 
instructions, see 
WARNING   Minimize patient movement during a RELEARN, as movement 
creates noise during the reading. If the system learns an abnormal rhythm or 
learns a rhythm during noise, it designates the learned rhythm as normal. 
Thereafter, rhythms of this type might not trigger an alarm. Ensure that the 
patient remains still for 5 minutes after the RELEARN before allowing them to 
move.