1
IBHRE EXAM MULTIPLE CHOICE QUESTIONS AND
CORRECT ANSWERS 2026 GET IT RIGHT !!!
A function of pacemaker circuitry that allows the
pacemaker output pulse to be dissipated quickly
maximizing both the output and sensing capabilities.
a) circuit resistors
b) charge dump
c) pulse neutralizer
d) current consumption -
-Correct Answers
B. Charge Dump
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 -
-Correct Answers
A. Short Blanking Period
Low threshold electrode materials include each of the
following EXCEPT:
a) iridium oxide
b) elgiloy
,2
c) platinized platinum
d) titanium nitride -
-Correct Answers
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 -
-Correct Answers
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 -
-Correct Answers
D. None of the above
Which of the following programmings would not
prevent crosstalk?
a) a prolonged blanking period
,3
b) "safety pacing"
c) low atrial output
d) less sensitive ventricular sensitivity -
-Correct Answers
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 -
-Correct Answers
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 -
-Correct Answers
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
, 4
d) VVI -
-Correct Answers
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 -
-Correct Answers
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 -
-Correct Answers
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
d) telemetered battery impedance -
IBHRE EXAM MULTIPLE CHOICE QUESTIONS AND
CORRECT ANSWERS 2026 GET IT RIGHT !!!
A function of pacemaker circuitry that allows the
pacemaker output pulse to be dissipated quickly
maximizing both the output and sensing capabilities.
a) circuit resistors
b) charge dump
c) pulse neutralizer
d) current consumption -
-Correct Answers
B. Charge Dump
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 -
-Correct Answers
A. Short Blanking Period
Low threshold electrode materials include each of the
following EXCEPT:
a) iridium oxide
b) elgiloy
,2
c) platinized platinum
d) titanium nitride -
-Correct Answers
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 -
-Correct Answers
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 -
-Correct Answers
D. None of the above
Which of the following programmings would not
prevent crosstalk?
a) a prolonged blanking period
,3
b) "safety pacing"
c) low atrial output
d) less sensitive ventricular sensitivity -
-Correct Answers
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 -
-Correct Answers
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 -
-Correct Answers
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
, 4
d) VVI -
-Correct Answers
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 -
-Correct Answers
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 -
-Correct Answers
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
d) telemetered battery impedance -
