8-8
NOTE
When [Paced] is set to [No], the pace markers are not shown on the ECG wave, and the options of [Pacer
Reject] are inactivated.
8.5.9 Adjusting the Minimum QRS Detection Threshold (For Mindray ECG Algorithm)
To avoid false asystole alarms when the R wave amplitude is low and missed asystole alarms during ventricular standstill
(tall P waves, but no QRS), a means to manually adjust the minimum QRS detection threshold is provided.
To adjust the QRS detection threshold,
1. In the [ECG Setup] menu, set [Filter] to [Monitor].
2. Select [Others >>]→[Minimum QRS Threshold >>] to enter the [Minimum QRS Threshold] menu.
3. Select the up or down arrow to adjust the QRS threshold. Selecting [Defaults] resets the QRS threshold to the
default value (0.16 mV).
4. Select [Confirm] to make the changes effective.
CAUTION
The setting of QRS threshold can affect the sensitivity of arrhythmia, ST, QT/QTc detection, and heart rate
calculation.
If QRS amplitude is low, the monitor might not be able to calculate heart rate and false asystole may occur.
NOTE
The minimum QRS detection threshold can only be adjusted when the ECG filter is set to Monitor.
8.5.10 Enabling Smart Lead Off
To switch on/off the smart lead off function, select [Others >>] from the [ECG Setup] menu; select [Smart Lead Off] and
toggle between [On] and [Off] from the popup menu.
When the smart lead off function is set on and there is a “lead off” in the lead of the first ECG wave, if another lead is
available, this available lead automatically becomes that lead. The system will re-calculate HR and analyze and detect
arrhythmia. When the “lead off” condition is corrected, the leads are automatically switched back.
8.5.11 Setting the Alarm Level for ECG Lead Off Alarms
Select [Alarm Setup >>] from the [User Maintenance] menu. You can set [ECGLeadOff Lev.] from the popup menu.
8.5.12 Adjusting QRS Volume
QRS sounds are produced based on the alarm source. To adjust the QRS volume, select [Others >>] from the [ECG Setup]
menu; select [QRS Volume] from the popup menu and select the appropriate setting. When valid SpO
2
measured value
is available, the system adjusts the pitch tone of QRS sound based on the SpO
2
value.
To Next Page
Loading...
Need help?
General
