Defibtech DDU-120 Series User Manual
Page 55
47
DAC-530E-EN-BH
Adult
Patient Impedance
(Ohms)
Phase A, Duration
(msec)
Phase B, Duration
(msec)
Energy Delivered
(Joules)
25
2.8
2.8
153
50
4.1
4.1
151
75
7.2
4.8
152
100
9.0
6.0
151
125
12.0
8.0
153
150
12.0
8.0
146
175
12.0
8.0
142
Pediatric
Patient Impedance
(Ohms)
Phase A, Duration
(msec)
Phase B, Duration
(msec)
Energy Delivered
(Joules)
25
4.1
4.1
35
50
5.8
3.8
47
75
5.8
3.8
51
100
7.2
4.8
53
125
7.2
4.8
52
150
9.0
6.0
53
175
9.0
6.0
51
8.1.5 Patient Analysis System
The DDU-120 Patient Analysis System ensures that the pad/patient impedance is within the proper range
and analyzes the patient’s ECG rhythm to determine whether a shock is required. On detection of a non-
shockable rhythm, the user is prompted to perform CPR. For shockable rhythms, the AED automatically
charges in preparation for shock delivery.
The patient analysis system will detect electrical “noise” or artifact in the ECG signal that may interfere
with accurate rhythm analysis. This artifact may be caused by excessive motion to the patient or by
external electrical noise. When this artifact is present, the AED will prompt the user to “Stop motion” or
“Stop Interference” until the ECG signal is free of noise and then proceed to analysis.