Ibhre 1 - Study guides, Class notes & Summaries
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IBHRE Exam with Correct Answers
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IBHRE Exam with Correct Answers 
Class I Drugs - Answer-Sodium Channel blockers (Phase 0) 
 
Class II Drugs - Answer-Beta blockers (SA/AV Node) 
 
Class III Drugs - Answer-Potassium Channel blockers (Phase 3) 
 
Class IV Drugs - Answer-Calcium Channel Blockers (Phase 2) 
 
Class V Drugs - Answer-Digitalis (SA + AV Nodes) 
 
What is the most posterior structure of the heart? - Answer-LA 
 
On an EKG, what structure is always negative? - Answer-AVN 
 
Lead I: + aVF: + - Answer-normal axis deviati...
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IBHRE-1 Test Questions and Answers 100% Solved
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IBHRE-1 Test Questions and Answers 
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which lead insulation material is known for reducing fibroblast in-growth ePTFE 
which lead insulation is succeptible to MIO and ESC 80A Polyurethane 
what is ESC cracks or crazing that occurs in polyurethane in response to certain chemicals 
and external stresses 
what is MIO a polyurethne degradation where moisture and metal ions act as a catalyst 
to accelerate degradation 
what lead insulation material improves the ease of extraction ePTFE ...
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IBHRE CEPS Exam with Complete Solutions
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IBHRE CEPS Exam with Complete 
Solutions 
Ohm's law equation V=IR 
EKG monitored patient should be __________, monitor chassis should be ___________ 
(nonconductive). Why ungrounded, grounded. Grounded patient would be able to 
conduct leakage currents. we dont want this 
lb to kg 2.2 lb = 1 kg 
F to C C=5/9(F-32) 
C to F F=9/5C+32 
3 things that change automaticity of automatic cells 1. slope of phase 4 
2. Change of threshold potential 
3. Change of resting membrane potential 
a systole is...
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EP IBHRE misc Questions and Answers 100% Solved
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EP IBHRE misc Questions and 
Answers 100% Solved 
Ohm's law expresses a relationship between voltage, current, and resistance as: Voltage 
= Amps x Resistance (Impedance) 
The property of an electronic circuit component through which current flows is proportional to 
the applied voltage is known as: resistance 
what term is equivalent to 1 J? WATT-SECOND 
What is the most appropriate band pass setting for bipolar intracardiac electrogram recordings? 
 40-500 Hz 
A band-pass filter modifies ...
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IBHRE EXAM 2024 WITH 100% CORRECT ANSWERS
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IBHRE EXAM 2024 WITH 100% CORRECT ANSWERS 
 
 
Voltage is? - correct answer The electromotive force pushing on electrons 
 
If the PM output voltage is 5v and the measured lead resistance is 330 ohms, then the current that flows out of the pacemaker into the heart is? - correct answer 15.15 
I=V/R=5V/.33 k ohm 
 
If a unipolar lead wire has an insulation break one would expect the resistance to? - correct answer decrease 
 
for a wire fracture the resistance? - correct answer increases 
 
if th...
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IBHRE Practice Exam #1 With 100% Correct Answers 2023
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IBHRE Practice Exam #1 With 100% Correct Answers 2023
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IBHRE Review Test Questions and Answers 100% Solved
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IBHRE Review Test Questions and 
Answers 100% Solved 
AV Node Reentry Tachycardia (AVNRT) - accounts for ~60% of arrhythmias presenting as 
SVT or paroxysmal atrial tachycardia (PAT) 
- affects all age groups and genders equally 
- no correlation with heart disease 
- heart rate 150-250 bpm, palpitations, light-headedness, near-syncope, narrow QRS complex 
rheobase lowest point on a strength duration curve at an infinitely long pulse duration; 
for cardiac pacing, the rheobase is usually reac...
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IBHRE Study Material: GTP Trivia Questions and Answers 100% Solved
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IBHRE Study Material: GTP Trivia 
Questions and Answers 100% Solved 
Most common form of SVT AVNRT 
AVNRT Characteristics 1. prolonged PR interval in the beat that starts reentry 2. HR: 150- 
250 bpm 3. neck pounding, palpitations, light-headiness, near-syncope 4. narrow QRS 5. abrupt 
onset and termination of episodes 6. more common in women 7. frequently presents after age 
20 
rheobase the lowest point on a strength-duration curve at an infinitely long pulse 
duration 
chronaxie time pulse...
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IBHRE Test Questions and Answers 100% Solved
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IBHRE Test Questions and Answers 
100% Solved 
Functional Refractory Period (FRP) the coupling interval which first results in a measurable degree 
of delay in impulse conduction 
effective refractory period the longest coupling interval to be associated with block 
resting (transmembrane) potential the voltage difference between the inside and outside of the 
cell fiber (negative inside cell) 
action potential the cellular characteristics of depolarization and repolarization. Consists of 5 ...
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IBHRE ATI Practice Test Questions and Answers 100% Solved
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IBHRE ATI Practice Test Questions 
and Answers 100% Solved 
How many HZ are in bpm? 1 HZ is equal to 60 bpm 
In what relation are the units microamps and milliamps used in terms of equations? 
 Microamps is a unit of current drain of battery for battery longevity. Milliamps is a unit 
for ohms law and the energy equation. 
In the Ohms law equation, what are the units? V=I x R: Volts= mA x kOhms 
What is the formula for energy? E = V x I x PW and can be converted into E = (V^2 x 
PW)/R. 
E is...
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