Follow DDU-2000 Series AED Instructions
At this point, the DDU-2000 Series AED will check to make sure that the pads are well connected to the patient and that an
adequate ECG signal is being received. Do not touch the patient. Eliminate any patient movement, and cease CPR at this time.
If there is a problem with the pad connection, socket connection, patient motion, or other interference, the AED will
guide the operator with both audible and displayed instructions. Text prompts are identical to or are an abbreviated form
of the audio prompts. Video prompts reinforce the audio and text prompts and aid in high ambient noise environments.
4.3 Heart Rhythm Analysis
Once the DDU-2000 Series AED has determined that the pads are making a good connection to the patient, the
AED will start the ECG rhythm analysis. The unit analyzes the ECG signal and determines whether a shockable or
non-shockable rhythm is present. While analyzing, the AED will continue to monitor signal and pad conditions and
will reassess analysis and prompt the user if additional user action is needed.
4.4 Delivering The Shock
If the DDU-2000 Series AED ECG analysis algorithm has determined that a shock is advised, the unit will
automatically charge in preparation for shock delivery. While the AED charges, the unit emits a charging tone and
continues to analyze the patient’s heart rhythm. If the unit detects that the heart rhythm has changed to non-
shockable, the unit prompts the user to begin CPR. While analyzing, the AED continues to monitor signal and pad
conditions.
Semi-Automatic Units (DDU-2300 and DDU-2450):
If the semi-automatic AED determines that a shock is advised
and has completed charging, the SHOCK button will fl ash and the user will be instructed to press the fl ashing SHOCK
button. The user should follow the AED instructions and press the SHOCK button.
Important
: Semi-automatic units will not automatically deliver a shock — the user
must
press the fl ashing SHOCK
button. If while waiting for the SHOCK button to be pressed, the unit detects a rhythm change to a non-shockable
rhythm, the unit will cancel the shock. Also, if the SHOCK button is not pressed within 30 seconds of the initial
“Press Flashing Shock Button” prompt, the unit will automatically cancel the shock.
DDU-2200 AED:
If the fully-automatic DDU-2200 AED determines that a shock is advised, the unit will indicate that
a shock is advised both via a vocal announcement and by fl ashing the Shock Required LED indicator for fi ve seconds.
After completing charge-up, the unit will
automatically
deliver the shock.
Do not touch the patient while the Shock
Required LED indicator is fl ashing.
On all DDU-2000 Series AEDs, the user can abort charging or shock delivery at any time by pressing and holding the
ON/OFF button for approximately two seconds to turn the unit off.
4.5 CPR Period
The operator will be prompted to begin CPR, if needed. The unit will not monitor the patient’s ECG rhythm during the CPR period.
During the CPR period, the AED will not advise the user to “Stop Motion” even if motion is present. The user should follow
the AED instructions during this time. Once the CPR period is complete, the unit will continue in Heart Rhythm Analysis mode.
CPR coaching is provided through a series of voice and visual prompts and audible tones. The factory default setting
provides prompts for chest compressions only (no breathing).
However, breathing prompts can be enabled/disabled by pressing the softkey button next to the Rescue Breathing
Options icon displayed on the screen during rescue. (Refer to the “Rescue Breathing Options Softkey Icon” section
below.) Breathing prompts can also be enabled/disabled by setting the menu option in Maintenance Mode. (Refer to
“
CPR Breathing
” in Section 6.8 of this manual.)
Rescue Breathing Options Softkey Icon
: During a rescue, when this icon is present on the
screen, the user may press the corresponding softkey button to select CPR coaching with
compressions only (no breathing) or CPR coaching with compressions and breathing.
Note
: Refer to “
CPR Breathing
” in Section 6.8 of this manual for instructions on how to change
the factory default setting.
When this
Information Softkey Icon
is present on the screen, the user may
press the corresponding softkey button for additional information with video
instruction. To exit, press the softkey button again.
4.
Using
The DDU-20
0
0
S
eries in
AED Mode
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