CCDS FINAL EXAM REVIEW TEST.
1. What lead insulation
ePTFE and 80A polyurethane
ma- terials are known
for re- ducing
fibroblast ingrowth and
susceptibility to Met-
al-ion induced
oxidation (MIO) and
Environmental Stress-
Cracking (ESC)
2. What is the most common Ventricular Ectopy
cause of safety pacing or
"ventricular safety with a typi- cal endless-loop-tachycar-
stand- by?" dia may be calculated by which
equation?
3. Which electrode
material is most likely
to result in higher
pacing thresholds
and higher degree of
po- larization?
4. What phase of the
action potential
correlates to rel- ative
refractory period?
5. The ventriculoatrial
con- duction time of a
pace- maker patient
1/
16
, CCDS FINAL EXAM REVIEW TEST.
Ventricular safety standby is a feature
designed to avoid the inappro- priate
inhibition of V-pacing due to crosstalk
oversensing of an Ap event on the
ventricular EGM. Not sure why the book
says that PVCs are the most common
cause, perhaps because bipolar leads
have made Crosstalk such a rare-
occurring issue now.
Elgiloy
3
(upper rate limit interval) - ( AV
delay + PVARP) ????????????????
or is it just MTR (URL) - AVD
2/
16
, CCDS FINAL EXAM REVIEW TEST.
6. For treatment of Conductivity or Rerfractoriness
arrhyth- mias, most
drugs work by
altering or
.
7. 1Hz = ??bpm 60bpm
8. What would cause a A: Ventricular lead sensing atrial
more significant drain signals
on bat- tery charge... B: Lead Insulation break C:
ATP before charge or Oversensing EMI
ATP during charge?
9. Increased current
density is expected
with what type of lead
feature?
10. is the
component of a
device that converts
both positive and
negative components
into a signal with only
one component.
11. Which of the following
would account for the
most common cause of
in- appropriate Mode
switch- ing?
3/
16
1. What lead insulation
ePTFE and 80A polyurethane
ma- terials are known
for re- ducing
fibroblast ingrowth and
susceptibility to Met-
al-ion induced
oxidation (MIO) and
Environmental Stress-
Cracking (ESC)
2. What is the most common Ventricular Ectopy
cause of safety pacing or
"ventricular safety with a typi- cal endless-loop-tachycar-
stand- by?" dia may be calculated by which
equation?
3. Which electrode
material is most likely
to result in higher
pacing thresholds
and higher degree of
po- larization?
4. What phase of the
action potential
correlates to rel- ative
refractory period?
5. The ventriculoatrial
con- duction time of a
pace- maker patient
1/
16
, CCDS FINAL EXAM REVIEW TEST.
Ventricular safety standby is a feature
designed to avoid the inappro- priate
inhibition of V-pacing due to crosstalk
oversensing of an Ap event on the
ventricular EGM. Not sure why the book
says that PVCs are the most common
cause, perhaps because bipolar leads
have made Crosstalk such a rare-
occurring issue now.
Elgiloy
3
(upper rate limit interval) - ( AV
delay + PVARP) ????????????????
or is it just MTR (URL) - AVD
2/
16
, CCDS FINAL EXAM REVIEW TEST.
6. For treatment of Conductivity or Rerfractoriness
arrhyth- mias, most
drugs work by
altering or
.
7. 1Hz = ??bpm 60bpm
8. What would cause a A: Ventricular lead sensing atrial
more significant drain signals
on bat- tery charge... B: Lead Insulation break C:
ATP before charge or Oversensing EMI
ATP during charge?
9. Increased current
density is expected
with what type of lead
feature?
10. is the
component of a
device that converts
both positive and
negative components
into a signal with only
one component.
11. Which of the following
would account for the
most common cause of
in- appropriate Mode
switch- ing?
3/
16
