IBHRE PRACTICE EXAM 2026 EXAM PREP
SCRIPT FULL QUESTION SET APPROVED
◉ In a normal person, stroke volume increases by what % when
exercising?
a) 20%
b) 50%
c) 100%
d) 200%. Answer: B. 50%
◉ The phenomenon of capture hysteresis is also known as:
a) Wenckebach
b) Wedensky effect
c) Wolf-Parkinson-White
d) Wilkoff effect. Answer: B. Wedensky Effect
◉ A Medtronic style 3.2 mm low profile lead with no sealing rings
and a long pin fits appropriately with which of the following
headers?
,a) VS-1
b) IS-1
c) VS-1A
d) VS-1B. Answer: D. VS-1B
◉ DBS (drawn brazed strand) is a term associated with:
A. frequently utilized electrode material
B. a silver and nickel alloy conductor material
C. ICD battery chemistry
D. insulation material for leads. Answer: B. A Silver & Nickel Alloy
Conductor Material
◉ In pacing, capacitors are:
A. charged and discharged in parallel (C1 + C2)
B. charged and discharged in series (1/C1 + 1/C2)
C. charged in parallel, discharged in series
D. charged in series, discharged in parallel. Answer: C. Charged In
Parallel, Discharged In Series
,◉ In a circuit with resistances of 100 ohms and 50 ohms in parallel
the circuit resistance would be:
A. 33 ohms
B. 50 ohms
C. 100 ohms
D. 150 ohms. Answer: A. 33 Ohms
◉ Battery capacity of a pacemaker is shown through?
a) capacitance
b) current
c) voltage
d) impedance. Answer: B. Current
◉ A likely benefit but possible concern of a ventricular detection
enhancement such as "stability" would be best described by which
of the following:
A. increase the specificity but decrease the sensitivity
B. increase the sensitivity but decrease the specificity
C. increase the sensitivity but delay therapy
, D. shorten the time to therapy delivery but decrease the sensitivity.
Answer: A. Increase The Specificity But Decrease the Sensitivity
◉ Which of the following is an advantage of silicone insulation over
polyurethane 55D?
a. better friction coefficient
b. higher tear strength
c. can use a thinner insulator
d. proven history. Answer: D. Proven History
◉ The upper limit of vulnerability is:
a. not related to a patient's true DFT
b. the strength above which VF is no longer inducible
c. the energy it takes to induce a patient into VF
d. not useful clinically. Answer: B. The Strength Above Which VF Is
No Longer Inducible
◉ Percent tilt of an ICD waveform refers to the:
a. relationship between charge time and DFT
SCRIPT FULL QUESTION SET APPROVED
◉ In a normal person, stroke volume increases by what % when
exercising?
a) 20%
b) 50%
c) 100%
d) 200%. Answer: B. 50%
◉ The phenomenon of capture hysteresis is also known as:
a) Wenckebach
b) Wedensky effect
c) Wolf-Parkinson-White
d) Wilkoff effect. Answer: B. Wedensky Effect
◉ A Medtronic style 3.2 mm low profile lead with no sealing rings
and a long pin fits appropriately with which of the following
headers?
,a) VS-1
b) IS-1
c) VS-1A
d) VS-1B. Answer: D. VS-1B
◉ DBS (drawn brazed strand) is a term associated with:
A. frequently utilized electrode material
B. a silver and nickel alloy conductor material
C. ICD battery chemistry
D. insulation material for leads. Answer: B. A Silver & Nickel Alloy
Conductor Material
◉ In pacing, capacitors are:
A. charged and discharged in parallel (C1 + C2)
B. charged and discharged in series (1/C1 + 1/C2)
C. charged in parallel, discharged in series
D. charged in series, discharged in parallel. Answer: C. Charged In
Parallel, Discharged In Series
,◉ In a circuit with resistances of 100 ohms and 50 ohms in parallel
the circuit resistance would be:
A. 33 ohms
B. 50 ohms
C. 100 ohms
D. 150 ohms. Answer: A. 33 Ohms
◉ Battery capacity of a pacemaker is shown through?
a) capacitance
b) current
c) voltage
d) impedance. Answer: B. Current
◉ A likely benefit but possible concern of a ventricular detection
enhancement such as "stability" would be best described by which
of the following:
A. increase the specificity but decrease the sensitivity
B. increase the sensitivity but decrease the specificity
C. increase the sensitivity but delay therapy
, D. shorten the time to therapy delivery but decrease the sensitivity.
Answer: A. Increase The Specificity But Decrease the Sensitivity
◉ Which of the following is an advantage of silicone insulation over
polyurethane 55D?
a. better friction coefficient
b. higher tear strength
c. can use a thinner insulator
d. proven history. Answer: D. Proven History
◉ The upper limit of vulnerability is:
a. not related to a patient's true DFT
b. the strength above which VF is no longer inducible
c. the energy it takes to induce a patient into VF
d. not useful clinically. Answer: B. The Strength Above Which VF Is
No Longer Inducible
◉ Percent tilt of an ICD waveform refers to the:
a. relationship between charge time and DFT
