BT-770 Operation manual
111
P/N : 770-ENG-OPM-EUR-D03
Bistos Co., Ltd.
2018.05
19
Alarm information
This chapter lists some important physiological and technical alarm information, and some
alarms are not necessarily listed.
Note that in this chapter: P column indicates the default alarm priority: H indicates high
priority, M indicates middle priority, L indicates low priority, and “*” indicates priority set by
the user.
Corresponding countermeasures are listed for each alarm message. If you operate in
accordance with the countermeasures but the problem persists, contact your service
personnel.
19.1 Physiological alarms
Source
Alarm message
P
Causes and countermeasures
ECG
HR Too High
M*
HR value is higher than the upper alarm limit or
lower than the lower alarm limit. Check the
patient's physiological condition, and check if the
patient category and alarm limit settings are
appropriate for the patient.
HR Too Low
PVCS Too High
M*
PVCs value is higher than the upper alarm limit or
lower than the lower alarm limit. Check the
patient's physiological condition, and check if the
patient category and alarm limit settings are
appropriate for the patient.
Asystole
H The patient has arrhythmia. Check the patient's
condition, electrodes, cables and lead wires.
VF/VTA
H
R on T
M*
Frequent PVC
M*
Couplet PVC
M*
Single PVC
M*
PVC Bigeminy
M*
PVC Trigeminy
M*
Tachycardia
M*
Bradycardia
M*
Miss Beat
M*
Pacemaker Not Capture
H Pacemaker works abnormally; check the
pacemaker.
Pacemaker Not work
H
ECG Signal weak
H The patient ECG signal is too weak, and the
system can’t analyze. Check the patient's
condition, electrodes, cables and leads.
ST-I Too High
M* ST value is higher than the upper alarm limit or
ST-I Too Low
