User Manual

Table Of Contents
124 Lumax Technical Manual
2.10.7 Manual Shock
The ICD/CRT-D can deliver a manual shock on demand through
a programmer command in the EP test menu. For manual
shocks, the energy, polarity and waveform are programmable
by the user. To deliver a shock, place the wand over the device
and select the Start Shock button. A confirmation menu will
appear and the shock command will be delivered upon selecting
the OK button in this screen. After each manual shock, the EP
test screen will display the shock energy, lead impedance and
charge time.
2.10.8 Test Shock
The ICD/CRT-D can deliver a 1 Joule (R-wave synchronous) test
shock on demand through a programmer command in the EP test
menu. This shock is designed to measure the shock impedance
and test the integrity of the shock electrodes of an implanted ICD
lead.
NOTE:
When the test shock is administered, VF detection is
automatically enabled.
WARNING
Resuscitation Availability - Do not perform induction testing
unless an alternate source of patient defibrillation such as an
external defibrillator is readily available. In order to implant
the ICD/CRT-D system, it is necessary to induce and convert
the patient’s ventricular tachyarrhythmias.
CAUTION
Defibrillation Threshold - Be aware that the changes in the
patient’s condition, drug regimen, and other factors may
change the defibrillation threshold (DFT) which may result in
non-conversion of the arrhythmia post-operatively.
Successful conversion of ventricular fibrillation or ventricular
tachycardia during arrhythmia conversion testing is no
assurance that conversion will occur post-operatively.