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4.7 No Shock Required
If the DDU-100 AED ECG analysis algorithm has determined that a shock is not required, it will not
charge the unit and the SHOCK button will not be enabled. The operator will be prompted to begin
CPR,ifneeded,foraperiodoftwominutes.Theunitwillnotbemonitoringthepatient’sECG
rhythmduringthistwominuteCPRperiod.
During this two-minute period, the AED will not advise the user to “stop motion” even if motion
is present. During the two-minute period, the AED will announce time remaining in 15-second
intervals.Attheendofthetwo-minuteperiod,theunitwillenternormalAnalyzingmode.
No Shock Required Voice Prompts:
“It is safe to touch the patient” – This indicates that the DDU-100 AED analysis algorithm
has determined that no shock is required. The unit will not charge and the SHOCK button will
not be enabled. TheuserwillbepromptedtobeginCPR,ifneeded,foraperiodoftwominutes.
The“analyzing”LEDwillremainofftoindicatethatbackgroundrhythmmonitoringhasbeen
suspended.
“Check airway”, ”Check breathing” – This indicates that the user should check the condition
ofthepatientinordertodetermineifitisappropriatetoperformCPR.
“If needed, begin CPR” –ThisindicatesthattheusershouldbeginCPR,ifneeded,fortwo
minutes.Theunitwillnotbemonitoringthepatient’sECGrhythmduringthistwominuteCPR
period.The“analyzing”LEDwillremainofftoindicatethatbackgroundrhythmmonitoringhasbeen
suspended.
“Continue for ‘x’ seconds” or “Continue for 1 minute ‘x’ seconds” – This indicates
thattheusershouldcontinueCPR,ifneeded,for‘x’moresecondsor,for1minuteand‘x’more
seconds,respectively.Theunitwillnotbemonitoringthepatient’sECGrhythmduringthistwo
minuteCPRperiod.The“analyzing”LEDwillremainofftoindicatethatbackgroundrhythm
monitoring has been suspended.
“Continue” –ThisindicatesthattheusershouldcontinueCPR,ifneeded.Thisphraseisspoken
betweenthe“continuefor‘x’seconds”or“continuefor1minute‘x’seconds”promptstoletthe
operatorknowthattheunitisstilloperatingnormally.Theunitwillnotbemonitoringthepatient’s
ECGrhythmduringthistwominuteCPRperiod.The“analyzing”LEDwillremainofftoindicate
that background rhythm monitoring has been suspended.
“Continue for 5, 4, 3, 2, 1”, “Stop CPR” – This indicates that the user should finish
performingCPR.Thisphraseisspokenduringthelastseveralsecondsofthetwo-minuteCPR
period to let the operator know that the unit is still operating normally and that the two-minute
period is ending.