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IBHRE Practice Test Questions questions and answers graded A+ 2025/2026
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IBHRE Practice Test Questions questions and answers graded A+ 2025/2026
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What cutting-edge ICD capacitor technologies offer the very best electricity density and doesnot require reformation? - ANSTantalum Electrolytic
1.Sixty seven Hz would equal what number of bpm? - ANS100 bpm
1 bpm = 0.0166667 Hz
Which tempo/sense lead designs might one assume the best contemporary density w/ a
bipolar impedance reading of 1100 ohms? - ANSBrady lead w/ anode of 4.2 mm2 and
cathode five.2 mm2
What is the voltage measurement of a pacing system w/ impedance of 500 ohms, current of
5.Zero milliamp and pulse width of 0.Four ms and charge of 60 bpm? - ANSV = 2.Five V
V=I x R
= 5.Zero milliamps x 500 ohms
= 2,500 millivolts
=2,500/a thousand
What situation is shown to have an increase stimulation threshold, wide QRS, latency, or
below sensing? - ANSHyperkalemia (high potassium)
What is the anticipated battery longevity of a pacemaker with 1.0 amp-hour battery and 20
microamp drain ? - ANSLongevity = 114 x (amp-hours/microamp drain)
= 114 x (1.0/20)
= 5.7 years
Which sensing related parameter represents the maximal charge of exchange of the
electrical capability among the sensing electrode and is the primary derivative of the
electrogram? - ANSSlew fee
The isovolumetric time from electrical depolarization of the coronary heart to mechanical
systole describes what term? - ANSPre-ejection interval
What take a look at is commonly performed at some stage in exercising with HR round one
hundred and five-one hundred fifteen and become shown to have a terrible predictive price
in MADIT II and SCD-HeFT? - ANSMicro volt t-wave alternans
Which battery chemistry is now included into pacemakers? - ANSLithium silver vanadium &
lithium carbon mono fluoride
What check is performed over 10-20 beats following a PVC and whose absence is a
predictor of cardiac mortality following an MI? - ANSMicro volt t-wave alternans
Fluoroquinolones, a new gen antibiotic is thought for which cardiac impact? - ANSProlonging
QT
What could decrease stim thresholds and present day drain? - ANSReducing electrode
surface vicinity
, Ex: from 12mm to 8mm
Match the gadgets: watt-2nd - ANSPower
Defibrillation energies exceed pacing energies via a factor of ? - ANS1,000,000
A band-bypass filter modifies incoming indicators consistent with which of the following
gadgets of measure? - ANSHertz
AV block happens in what percentage of congenital open heart surgeries? - ANS1-three%
In order to have a pacing gadget mechanically assess capture and thresholds, the critical
electrode characteristics might be? - ANSMinimal electrode diameter length
In a ordinary man or woman, stroke volume will increase by using what % while workout? -
ANS50%
In pacing, capacitors are: - ANSCharged in parallel and discharged in collection
In a circuit with resistance of 500 ohms and 600 ohms inside the parallel circuit the
resistance could be? - ANSR total = R1 x R2
————
(R1 + R2)
= (500 x six hundred)
——————-
(500 + six hundred)
= 272.7 ohms
Battery ability of a pacemaker is given wherein parameter? - ANSCurrent
Most normally applied battery in modern ICDs? - ANSLithium silver vanadium oxide
What does one French length identical in mm? - ANS0.3mm
What drug will growth DFT inside 2 days? - ANSFlecainide
What drug might be given to reduce pacing thresholds? - ANSIsoproterenol IV
Which pacing indication would maximum probable use Rate drop response, surprising Brady
response or price hysteresis? - ANSCarotid sinus hypersensitivity
What become a secondary endpoint finding CTOPP and MOST studies evaluating atrial vs
ventricle pacing? - ANSReduced onset of AF
Patient with lengthy QT getting ICD. What drug have to be avoided due to expanded chance
of Torsades De Pointes - ANSErythromycin
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