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Which of the following lead insulation materials are known
for reducing fibroblast ingrowth and susceptibility to MIO
and ESC, respectively?
Select one: The correct answer is:ePTFE and 80A polyurethane
a. Silicone and 55D polyurethane This is incorrect.
b. Silicone and ePTFE
c. 0A polyurethane and silicone/polyurethane hybrid
d.ePTFE and 80A polyurethane
The ventriculoatrial conduction time of a pacemaker pa-
tient with a typical endless-loop-tachycardia may be cal-
culated by which equation?
Select one: The correct answer is: None of the above
a. Rate - programmed A-pace AV delay
b. Rate - programmed A-sense AV delay This is incorrect.
c. Lower rate limit - upper rate limit
d. None of the above
For treatment of arrhythmias, most drugs work by:
Select one:
a. Increasing the export of Ca into the cell The correct answer is: Altering conductivity or refractori-
b. Altering conductivity or refractoriness ness
c. Maintaining a consistent cardiac action potential This is
incorrect.
d. Soothing irritable foci
The electrical circuit that converts a signal with both posi-
tive and negative components into a signal with only one
component? The correct answer is: Rectifier
Select one:
, IBHRE CCDS Comprehensive Resource To Help You Ace 2026-2027 Exams Includes
Frequently Tested Questions With ELABORATED 100% Correct COMPLETE SOLUTIONS
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a. Resistor
b. Rectifier
c. Diode
d. Capacitor
Which of the above 3 month stimulation threshold graphs
would be most characteristic of steroid eluting tined atrial
lead?
The correct answer is: D
Select one:
a. A
b. B This is incorrect.
c. C
d. D
Which of the following conditions has been shown to
cause: an increase in stimulation threshold, a wide QRS,
latency, or undersensing?
The correct answer is: Hyperkalemia
Select one:
a. Hypokalemia
b. Hyperkalemia
c. Hypercalcemia
d. Hypocalcemia
Which of the following RV leads would be least prone to
anodal stimulation in an extended bipolar configuration
with a unipolar LV lead when BiV pacing?
Select one:
a. A brady lead with an anode 5 mm2 and cathode 1.2
mm2
, IBHRE CCDS Comprehensive Resource To Help You Ace 2026-2027 Exams Includes
Frequently Tested Questions With ELABORATED 100% Correct COMPLETE SOLUTIONS
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b. A brady lead with an anode 4.2 mm2 and cathode of 5
mm2
c. An integrated ICD lead with an anode 450 mm2 and The correct answer is: An integrated ICD lead with an
cathode 2 mm2 This is correct! anode 450 mm2 and cathode 2 mm2
d. A dedicated bipolar ICD lead with an anode 6 mm2 and
cathode 2.5 mm2
If one has the physiologic substrate for reentry, which of
the following would be necessary to initiate the reentry
tachycardia?
Select one:
The correct answer is: Unidirectional block of one pathway
a. Heterogeneity of refractory
b. Ditterential conduction of the pathways This is incor-
rect.
c. Two pathways connected distally and proximally
d. Unidirectional block of one pathway
The term S2 refers to the:
Select one:
a. Drive cycle length The correct answer is: First premature stimulus
b. First premature stimulus
c. Second premature stimulus This is incorrect.
d. Second incremental burst
Faster and longer range telemetry, new therapies, and
physiologic sensors in pacemaker devices require higher
peak power outside the range of Li/I2 batteries. Which of
the following battery chemistries is now incorporated into The correct answer is: Lithium silver vanadium oxide &
some pacemakers? lithium carbon monofluoride
Select one:
a. Lithium silver vanadium oxide & lithium carbon mono-
, IBHRE CCDS Comprehensive Resource To Help You Ace 2026-2027 Exams Includes
Frequently Tested Questions With ELABORATED 100% Correct COMPLETE SOLUTIONS
Guaranteed Pass First Attempt!! Current Update!!
Instant Download Pdf!!
fluoride
b. Lithium ion batteries
c. Nickel cadmium batteries
d. Lithium thionyl chloride batteries
Fluoroquinolones, a new generation of broad spectrum
oral antibiotics, is known for which of the following cardiac
ettects?
Select one:
The correct answer is: Prolonging the QT
a. Suppressing sinus node function
b. Slowing conduction through the AV node
c. Positive inotropic ettects
d. Prolonging the QT
The horizontal asymptote of a strength duration curve
defines which of the following:
Select one: The correct answer is: Rheobase
a. Charge
b. Pulse width threshold
c. Rheobase
d. Chronaxie
Which of the following pacemaker components is most
susceptible to cumulative damage from high doses of
radiation?
Select one: The correct answer is: CMOS
a. Accelerometer
b. Transistors
c. Zener diode
d. CMOS
Frequently Tested Questions With ELABORATED 100% Correct COMPLETE SOLUTIONS
Guaranteed Pass First Attempt!! Current Update!!
Instant Download Pdf!!
Which of the following lead insulation materials are known
for reducing fibroblast ingrowth and susceptibility to MIO
and ESC, respectively?
Select one: The correct answer is:ePTFE and 80A polyurethane
a. Silicone and 55D polyurethane This is incorrect.
b. Silicone and ePTFE
c. 0A polyurethane and silicone/polyurethane hybrid
d.ePTFE and 80A polyurethane
The ventriculoatrial conduction time of a pacemaker pa-
tient with a typical endless-loop-tachycardia may be cal-
culated by which equation?
Select one: The correct answer is: None of the above
a. Rate - programmed A-pace AV delay
b. Rate - programmed A-sense AV delay This is incorrect.
c. Lower rate limit - upper rate limit
d. None of the above
For treatment of arrhythmias, most drugs work by:
Select one:
a. Increasing the export of Ca into the cell The correct answer is: Altering conductivity or refractori-
b. Altering conductivity or refractoriness ness
c. Maintaining a consistent cardiac action potential This is
incorrect.
d. Soothing irritable foci
The electrical circuit that converts a signal with both posi-
tive and negative components into a signal with only one
component? The correct answer is: Rectifier
Select one:
, IBHRE CCDS Comprehensive Resource To Help You Ace 2026-2027 Exams Includes
Frequently Tested Questions With ELABORATED 100% Correct COMPLETE SOLUTIONS
Guaranteed Pass First Attempt!! Current Update!!
Instant Download Pdf!!
a. Resistor
b. Rectifier
c. Diode
d. Capacitor
Which of the above 3 month stimulation threshold graphs
would be most characteristic of steroid eluting tined atrial
lead?
The correct answer is: D
Select one:
a. A
b. B This is incorrect.
c. C
d. D
Which of the following conditions has been shown to
cause: an increase in stimulation threshold, a wide QRS,
latency, or undersensing?
The correct answer is: Hyperkalemia
Select one:
a. Hypokalemia
b. Hyperkalemia
c. Hypercalcemia
d. Hypocalcemia
Which of the following RV leads would be least prone to
anodal stimulation in an extended bipolar configuration
with a unipolar LV lead when BiV pacing?
Select one:
a. A brady lead with an anode 5 mm2 and cathode 1.2
mm2
, IBHRE CCDS Comprehensive Resource To Help You Ace 2026-2027 Exams Includes
Frequently Tested Questions With ELABORATED 100% Correct COMPLETE SOLUTIONS
Guaranteed Pass First Attempt!! Current Update!!
Instant Download Pdf!!
b. A brady lead with an anode 4.2 mm2 and cathode of 5
mm2
c. An integrated ICD lead with an anode 450 mm2 and The correct answer is: An integrated ICD lead with an
cathode 2 mm2 This is correct! anode 450 mm2 and cathode 2 mm2
d. A dedicated bipolar ICD lead with an anode 6 mm2 and
cathode 2.5 mm2
If one has the physiologic substrate for reentry, which of
the following would be necessary to initiate the reentry
tachycardia?
Select one:
The correct answer is: Unidirectional block of one pathway
a. Heterogeneity of refractory
b. Ditterential conduction of the pathways This is incor-
rect.
c. Two pathways connected distally and proximally
d. Unidirectional block of one pathway
The term S2 refers to the:
Select one:
a. Drive cycle length The correct answer is: First premature stimulus
b. First premature stimulus
c. Second premature stimulus This is incorrect.
d. Second incremental burst
Faster and longer range telemetry, new therapies, and
physiologic sensors in pacemaker devices require higher
peak power outside the range of Li/I2 batteries. Which of
the following battery chemistries is now incorporated into The correct answer is: Lithium silver vanadium oxide &
some pacemakers? lithium carbon monofluoride
Select one:
a. Lithium silver vanadium oxide & lithium carbon mono-
, IBHRE CCDS Comprehensive Resource To Help You Ace 2026-2027 Exams Includes
Frequently Tested Questions With ELABORATED 100% Correct COMPLETE SOLUTIONS
Guaranteed Pass First Attempt!! Current Update!!
Instant Download Pdf!!
fluoride
b. Lithium ion batteries
c. Nickel cadmium batteries
d. Lithium thionyl chloride batteries
Fluoroquinolones, a new generation of broad spectrum
oral antibiotics, is known for which of the following cardiac
ettects?
Select one:
The correct answer is: Prolonging the QT
a. Suppressing sinus node function
b. Slowing conduction through the AV node
c. Positive inotropic ettects
d. Prolonging the QT
The horizontal asymptote of a strength duration curve
defines which of the following:
Select one: The correct answer is: Rheobase
a. Charge
b. Pulse width threshold
c. Rheobase
d. Chronaxie
Which of the following pacemaker components is most
susceptible to cumulative damage from high doses of
radiation?
Select one: The correct answer is: CMOS
a. Accelerometer
b. Transistors
c. Zener diode
d. CMOS
