Understanding the ECG Display Monitoring ECG, Arrhythmia, ST and QT
7 - 18 TM80 Telemetry Monitor Operator’s Manual
â—† Both: both HR and PR are used as the alarm source for HR/PR.
7.6 Understanding the ECG Display
7.6.1 HR Digital Area
1. Parameter name
2. Measurement unit
3. Heart rate value
4. PR source: PR source is displayed when ECG leads are not connected and valid PR
value is detected,
5. HR/PR alarm off symbol: when HR/PR alarm is switched on and valid HR/PR value is
detected, HR/PR alarm high and low limits in place of the alarm off symbol are dis-
played.
NOTE
• When Alarm Source is set to HR, systole beep comes from heart beat.
When Alarm Source is set to PR, systole beep comes from pulse rate.
NOTE
• Both the HR value displayed on the TM80’s main screen and that at the
Central Station can meet relevant standards and are reliable. HR
trended, alarm checking, and arrhythmia are based on the HR calculated
at the Central Station.
• Please be noted that in case of weak wireless signals, the Central Station
faces the risk of data loss and the HR value calculated by the ECG algo-
rithm for the Central Station may have certain deviation.
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