ZOLL AED Pro Rev J - Manual (Page 62)

C HAPTER 4 M ANUAL M ODE
4–8 www.zoll.com 9650-0350-01 Rev. J
Figure 3 shows a patient in PEA, which could easily be mistaken for Fine VF because enough
of the compression artifact leaks through to distort this signal. When the CPR filter turns on, the
PEA is still not obvious because of the left over ripples from the CPR signal. About 14 seconds
into this chart, the rhythm changes to asystole, which could easily be mistaken for coarse VF.
When the CPR filter turns on, the CPR compression ripples are still obvious, making the
rhythm look like Fine VF.
Figure 3.
Asystole
0:00 0:12
Raw ECG Raw ECG
Filtered ECG Filtered ECG
CPR CPR
| Filter ON
•
Asystole
0:12 0:24
Raw ECG Raw ECG
Filtered ECG Filtered ECG
CPR CPR
| Filter OFF
•
| Filter ON
•
Asystole
0:24 0:36
Raw ECG Raw ECG
Filtered ECG Filtered ECG
CPR CPR
| Filter OFF
•
12.5 mm/sec, 5 mm/mV