CCDS IBHRE CERTIFICATION ASSESSMENT
2026 ACTUAL QUESTIONS WITH DETAILED
ANSWERS AND RATIONALES GRADED A+
⩥ AV sequentially paced patients with frequent ventricular ectopy
should have the following pacemaker parameters programmed to
decrease the chance of competition:
a) short blanking period
b) slower base rate
c) increased ventricular refractory period
d) none of the above. Answer: A. Short Blanking Period
⩥ Low threshold electrode materials include each of the following
EXCEPT:
a) iridium oxide
b) elgiloy
c) platinized platinum
d) titanium nitride. Answer: B. Elgiloy
⩥ The strength duration curve resulting in a parabolic shape is described
by which of the following formulas?
,a) I x t
b) I x V x t
c) I x R
d) all of the above. Answer: B. I x V x t
⩥ The ventriculoatrial conduction time of a pacemaker patient with a
typical endless-loop-tachycardia may be calculated by which equation?
a) (upper rate limit interval) - ( AV delay + PVARP)
b) (upper rate limit interval) - ( AV delay + PVARP + Wenckebach
interval
c) (lower rate limit interval) - ( upper rate limit interval)
d) none of the above. Answer: D. None of the above
⩥ Which of the following programmings would not prevent crosstalk?
a) a prolonged blanking period
b) "safety pacing"
c) low atrial output
d) less sensitive ventricular sensitivity. Answer: B. "Safety Pacing"
,⩥ The most commonly used battery chemistry in ICDs is:
a) lithium thionyl chloride
b) lithium manganese dioxide
c) lithium silver vanadium oxide
d) lithium manganese dioxide. Answer: C. Lithium Silver Vanadium
Oxide
⩥ The purpose of a capacitor in an electrical circuit is to:
a) convert AC to DC current
b) store electrical charge
c) rapidly switch battery voltage on or off
d) limit current flow to a single direction. Answer: B. Store Electrical
Charge
⩥ A programming mode that would NOT be utilized to manage
intermittent atrial fibrillation in a patient with a DDD pacemaker is:.
a) DDI
b) DVI
c) VDD
d) VVI. Answer: C. VDD
, ⩥ Variations in stimulus morphology on the surface ECG of an analog
recorder may be caused by:
a) a dislodged electrode
b) an electrical short
c) changes in patient position
d) all of the above. Answer: D. All of the above
⩥ All of the following have been used as ERI magnet responses except:
a) abrupt increase in rate
b) abrupt decrease in rate
c) gradual increase in rate
d) gradual decrease in rate. Answer: C. Gradual Increase In Rate
⩥ Which of the following has not been used as an indicator of battery
depletion?
a) pulse width stretching
b) mode change
c) programmed amplitude reversion
2026 ACTUAL QUESTIONS WITH DETAILED
ANSWERS AND RATIONALES GRADED A+
⩥ AV sequentially paced patients with frequent ventricular ectopy
should have the following pacemaker parameters programmed to
decrease the chance of competition:
a) short blanking period
b) slower base rate
c) increased ventricular refractory period
d) none of the above. Answer: A. Short Blanking Period
⩥ Low threshold electrode materials include each of the following
EXCEPT:
a) iridium oxide
b) elgiloy
c) platinized platinum
d) titanium nitride. Answer: B. Elgiloy
⩥ The strength duration curve resulting in a parabolic shape is described
by which of the following formulas?
,a) I x t
b) I x V x t
c) I x R
d) all of the above. Answer: B. I x V x t
⩥ The ventriculoatrial conduction time of a pacemaker patient with a
typical endless-loop-tachycardia may be calculated by which equation?
a) (upper rate limit interval) - ( AV delay + PVARP)
b) (upper rate limit interval) - ( AV delay + PVARP + Wenckebach
interval
c) (lower rate limit interval) - ( upper rate limit interval)
d) none of the above. Answer: D. None of the above
⩥ Which of the following programmings would not prevent crosstalk?
a) a prolonged blanking period
b) "safety pacing"
c) low atrial output
d) less sensitive ventricular sensitivity. Answer: B. "Safety Pacing"
,⩥ The most commonly used battery chemistry in ICDs is:
a) lithium thionyl chloride
b) lithium manganese dioxide
c) lithium silver vanadium oxide
d) lithium manganese dioxide. Answer: C. Lithium Silver Vanadium
Oxide
⩥ The purpose of a capacitor in an electrical circuit is to:
a) convert AC to DC current
b) store electrical charge
c) rapidly switch battery voltage on or off
d) limit current flow to a single direction. Answer: B. Store Electrical
Charge
⩥ A programming mode that would NOT be utilized to manage
intermittent atrial fibrillation in a patient with a DDD pacemaker is:.
a) DDI
b) DVI
c) VDD
d) VVI. Answer: C. VDD
, ⩥ Variations in stimulus morphology on the surface ECG of an analog
recorder may be caused by:
a) a dislodged electrode
b) an electrical short
c) changes in patient position
d) all of the above. Answer: D. All of the above
⩥ All of the following have been used as ERI magnet responses except:
a) abrupt increase in rate
b) abrupt decrease in rate
c) gradual increase in rate
d) gradual decrease in rate. Answer: C. Gradual Increase In Rate
⩥ Which of the following has not been used as an indicator of battery
depletion?
a) pulse width stretching
b) mode change
c) programmed amplitude reversion
