User Manual Part 7

D-2 ApexPro™ 2001989-301A- draft 1
Troubleshooting
ECG
Arrhythmia troubleshooting
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. Click on the patient’s ECG tab.
2. Click on all ECG leads in the Display section and check for 0.5 mV amplitude at
normal (1X) size. (At least 0.5 mV amplitude is required for QRS detection.) For
borderline signals, validate on a graph.
3. If amplitudes are low, electrodes may need to be repositioned or replaced.
Relearn arrhythmia:
1. Click on the patient’s ECG tab.
2. Click on the Relearn button.
IF PROBLEM CONTINUES: Change to Single-Lead ECG detection and processing:
1. Click on the patient’s ECG tab.
2. Click on Single-Lead in the Lead Analysis section.
3. Click on the ECG leads in the Display section and change top ECG waveform to
display the lead with the greatest amplitude. (At least 0.5 mV amplitude is
required for QRS detection.)
Problem: False ventricular calls
Solution: Check ECG signal from patient: (V leads 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 V lead is a problem, move the V lead to another V
position.)
4. Relearn ECG:
 Click on the patient’s ECG tab.
 Click on the Relearn button.
IF PROBLEM CONTINUES:
1. Remove the V lead(s).
Draft