ICD Inductions and Programming Flashcards
Do Medtronic ICD’s have programmable tilt for ventricular therapies?
- No
- have fixed tilt 50/50
What acronym is used when performing an ICD device functional integrity test prior to implantation?
VTOP:
- Voltage
- date and Time
- verify detections of Off
What is the minimum battery voltage allowed when implanting an ICD?
voltage must be > 2.97V
What are the 2 methods for inducing VF during a DFT?
T-shock and 50Hz burst
What do the following T-Shock Parameters represent?
1) #S1
2) S1S1
3) delay
1) number of pacing pulses delivered in the pacing train
2) cycle length (rate) pacing train is delivered
3) time between the last pacing pulse and the shock
What are the sequence of events seen on an EGM when performing a DFT?
1) pacing train
2) shock on T-wave following delay interval
3) FS sensing
4) FD detected
5) charging of capacitor
6) shock delivered
7) NS or RNID
What are the programmable T-Shock values used for induction during a DFT?
- number of pulses in the pacing train (#S1)
- cycle length or rate of the pacing train
- length of delay between the last pulse and shock
- energy level
What are the programmable 50Hz Burst values used for induction during a DFT?
- chamber
- amplitude
- pulse width
What is the maximum amount of time the device will allow delivery of a 50Hz Burst used for induction during a DFT?
burst times out after 10 seconds regardless of how long the button is pressed
What does the pneumonic “STD” stand for in relation to a DFT?
- Sensitivity (set RV to least sensitive - 1.20mV)
- Therapies (start low, 15-25J)
- Detections (set to lowest NID and RNID)
What does the pneumonic REPD stand for in relation to a DFT?
- Resume at delivery (want checked)
- Enable (want checked)
- Deliver shock
What should the RV sensitivity be set to prior to performing a DFT?
1.2mV or the least sensitive setting
What should the VF therapy energy be set to after performing a DFT?
- add 10 Joules to the DFT rescue energy
