Patient Monitor User Manual Monitoring ECG/ RESP
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3 Take care to initiate ARR selflearning only during periods of predominantly normal
rhythm and when ECG signal is relatively noise-free. If ARR selflearning takes place
during arrhythmia, the ectopics may be incorrectly learned as normal QRS complex.
This may result in missed detection of subsequent events of arrhythmia.
4 If ARR selflearning is performed during ventricular rhythm, ventricular heartbeats
may be erroneously identified as normal QRS complexes. This may lead to missed
ventricular tachycardia and ventricular fibrillation events.
Due to this reason, you should:
1) Take care that ARR selflearning may start automatically;
2) Response to lead off information;
3) Always check the correctness of arrhythmia alarm.
13.8 Measuring RESP
WARNING
1 Respiration measurements can not detect all underexposure sudden events, nor can
they distinguish between central, obstructive and mixed respiratory asphyxial events.
It only prompts alarm in a predetermined time if the last breath is detected and the
next breath is not detected, so it can not be used for diagnostic purposes.
2 If operating under conditions according to the EMC Standard EN 60601-1-2 (Radiated
Immunity 3 V/m), field strengths above 3 V/m may cause erroneous measurements at
various frequencies. Therefore it is recommended to avoid the use of electrically
radiating equipment in close proximity to the respiration measurement unit.
3 Cardiogenic artifact in impedance respiration monitoring may make it difficult to detect
breaths or may otherwise be counted as breaths. In some instances, the breath rate
may also correspond to the heart rate making it difficult to determine if the signal is
due to breathing or the cardiac cycle. Do not rely on RESP monitoring as the sole
method for detecting cessation of breathing. Follow hospital guidelines and best
clinical practices for apnea detection including monitoring additional parameters that
indicate the patient’s oxygenation status, such as etCO
2
and SpO
2
.
4 For the diagnosis of apnea, especially in premature infants and infants, the safety and
effectiveness of respiration measurements have not been validated.
5 To monitor the respiration, only non-ESU-proof accessories can be used. This is
because the internal impedance of the ESU-proof accessories required to be used for
electrosurgical operation is too large.
6 Some implantable pacemakers can adjust their triggering frequency according to the
"minute ventilation rate." Impedance respiration measurements may cause these
pacemakers to react incorrectly. To prevent this, turn off the respiration measurement.
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