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5 Patient Alarms and INOPs
INOP Message, Indication
BIS SENSOR MALFUNC
INOP tone
BIS SENSOR USAGE
INOP tone
BIS SQI < 15% (INOP tone)
OR
BIS SQI < 50% (no INOP tone)
BIS UNPLUGGED
INOP tone
BISx DISCONNECTED
INOP tone
BISx INCOMPATIBLE
INOP tone
BISx MALFUNCTION
INOP tone
CANNOT ANALYZE ECG
CANNOT ANALYZE QT
CANNOT ANALYZE ST
64
Source
What to do
BIS
Malfunction in the sensor hardware, most often caused by
liquids permeating into the connectors OR patient interface
cable (PIC) or DSC or BISx may be faulty.
Replace the sensor. Manually initiate a Cyclic Impedance
Check. Make sure all electrodes pass the test. Make sure that
the both sides of the PIC connector (between PIC and sensor)
are dry. If you are not sure that the connector is dry, replace the
PIC until it has dried. If this INOP persists, contact your
service personnel.
BIS
Excessive sensor usage. Replace sensor.
A Cyclic Impedance Check will start automatically.
BIS
If the signal quality is below 50%, BIS numerics cannot be
reliably derived.
If the signal quality is below 15%, no BIS numerics can be
derived.
This may occur as a result of artifacts such as those generated
from motion or the presence of electrocautery devices. Make
sure the sensor is properly attached to the patient. Manually
initiate a Cyclic Impedance Check. Make sure all electrodes
pass the test. Make sure the patient is completely relaxed (even
small motions of the facial muscles affect the signal quality).
BIS
Plug in the BIS module. Silencing this INOP switches off the
measurement.
BIS
The BISx is not connected to the BIS module or the BIS
interface board. Silencing this INOP switches the measurement
off.
BIS
The BISx software is not compatible with the BIS module or
with the MP20/MP30 monitor software. A software upgrade
may be required. Contact your service personnel.
BIS
The BISx is faulty. Disconnect and reconnect it to the module
or BIS interface board. If the INOP persists, replace the BISx.
MP20/MP30 - Malfunction on interface board. If the INOP
persists, contact your service personnel.
ECG/
The arrhythmia algorithm cannot reliably analyze the ECG
Arrhythmia
data. Check the ECG signal quality of the selected primary and
secondary leads. If necessary, improve lead position or reduce
patient motion.
If you have arrhythmia analysis on, and you are not getting a
reliable HR because the signal is below a minimum amplitude,
unstable, or contains artifact, and you have tried to improve the
system performance by choosing another lead and changing
electrodes, you should consider turning arrhythmia analysis off.
QT
The QT algorithm cannot generate a valid QT value for more
than 10 minutes, or 1 minute in the initial phase.
ST
The ST algorithm cannot generate a valid ST value. Possible
causes are large variations in the measured ST values for
consecutive beats, or ventricular paced beats. Review the ECG
signal quality and the ST measurement points.
If the patient has a ventricular pacemaker, ST analysis is not
possible.
Technical Alarm Messages (INOPs)

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