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IBHRE CEPS preparation Exam with correct answers
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IBHRE CEPS preparation Exam with correct answers
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IBHRE CEPS preparation Exam withcorrect answers
Ohm's Law - correct answer -Voltage (V) = Current (I) x Resistance (R)
Electrophysiologic recorder filters should be able to process signals filtered between - correct answer -
30-40 Hz and 400-500 Hz
Class 1A antiarrhythmic drugs like Quinidine, Procainamide, and Class
3 antiarrhythmic drugs like dofetilide and sotalol do what? - correct answer -Prolong action potential
duration and cause QT prolongation.
Class 1C agents including flecainide and propafenone do not: - correct answer -prolong the action
potential or increase refractoriness
In a pacemaker, as the voltage of the battery is depleted, the internal resistance of the battery will: -
correct answer -Increase in a nonlinear fashion
For a cardioversion that resulted in burn rings in the outline of each paddle where the paddles had been
placed is likely due to: - correct answer -Edge effect of an electrical conductor (charge induced on the
electrode intensifies at the outer edge of the electrode)
Phase 0 of action potential represents - correct answer -rapid depolarization
What happens in Phase 0? - correct answer -Sodium channels open, allowing sodium to rapidly move
into the cells in response to the less negative potential gradient across the cell membrane
What is the morphology during right ventricular apex pacing? - correct answer -LBBB with superior axis.
RV is activated before LV, resulting in LBBB morphology with activation starting at the apex and moving
superiorly
, What drug slows AV Node conduction time? - correct answer -Adenosine
An emergency drug given for bradycardia or AV nodal Block - correct answer -Atropine
What reverses the anticoagulation effects of heparin - correct answer -Protamine
This type of lead is contraindicated when a pacemaker is necessary in a patient with a transvenous ICD -
correct answer -Unipolar Lead
What drug has Class II and III antiarrhythmic properties, and is used in the treatment of Atrial
Fibrillation, atrial flutter, and ventricular tachycardia? - correct answer -Sotalol
Sotalol tends to _______ the QT interval, which may give rise to _____________ - correct answer -
prolong; Torsade de Pointes
The Vaughn Williams classification of antiarrhythmic drugs is based on the - correct answer -effect of the
cardiac action potential
Lead fracture causes - correct answer -High impendance
Insulation Break in a lead results in - correct answer -lead impedance <200
Pain at the pocket in the early post-implant period is most likely related to - correct answer -device edge
irritation of subcuticular structures due to the location of the pulse generator
What class Drug is Lidocaine? - correct answer -Class 1B
Class 1B drugs ________________ the duration of the action potential and _______________
refractoriness - correct answer -shorten; decrease
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