GE Responder AED Service Manual page 16

SECTION 3 – MAINTENANCE AND TROUBLESHOOTING
PACEMAKER PULSE DETECTION
The AED contains pacemaker pulse detection circuitry to detect pulses from an implanted pacemaker.
Supraventricular Tachycardia (SVT) DISCRIMINATORS
The Responder AED is supplied with the SVT Discriminator enabled and with the default setting "NO
THERAPY FOR SVT". With the factory default setting of "NO THERAPY FOR SVT", the Responder AED
will not shock an SVT rhythm.
SVT Discriminators are sophisticated filters that analyze the morphology of the ECG waveforms and
distinguish VF/VT from SVT and Normal Sinus Rhythms (NSR). The SVT Discriminator will only be applied
to rhythms that fall between the Detection Rate and the SVT Rate. The factory default setting for this feature
is "NO THERAPY FOR SVT", however the Medical Director can enable this feature using ServiceLink on the
Responder AED.
SVT RATE
All rhythms with rates between the Detection Rate and SVT Rate will be screened through a number of SVT
Discriminators to classify them into VF/VT or SVT. Rhythms classified as SVT between the two set rates are
not shockable. All SVT rhythms above the rates will be classified as shockable. The SVT Rate must be
greater than the Detection Rate and is selectable by Service between 160 and 300 bpm or, "NO THERAPY
FOR SVT" can be selected via ServiceLink Software by the Medical Director on the Responder AED only.
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