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Rev. 3.0
78
BM3 User’s Manual
Trouble shooting
Problem:
Inaccurate heart rate and/or false asystole.
Solution:
Check ECG signal from patient:
1. Check/adjust lead placement.
2. Check/perform skin preparation.
3. Check/replace electrodes.
Check amplitude of ECG waveform:
1. Select ECG parameter label.
2. Select DISPLAY LEAD,
3. Scroll through all ECG leads and check for 0.5mV amplitude at normal (1X) size. (at least
0.5mV amplitude is required for QRS detection.) for borderline signals, validate on a graph.
4. If amplitudes are low, electrodes may need to be repositioned or replaced.
Problem:
False ventricular calls.
Solution:
Check ECG signal from patient: (the chest lead may exhibit polarity changes which may
occasionally cause an inaccurate call.)
1. Check/adjust lead placement.
2. Check/perform skin preparation.
3. Check/replace electrodes. (if chest lead is a problem, move the chest lead to another chest
position or leg position.)
