Copyright © KAYLIN 2024/2025 ACADEMIC YEAR. ALL RIGHTS RESERVED FIRST PUBLISH NOVEMBER, 2024
IBHRE CEPS Exam Questions and
Answers 100% Pass
Ohm's law equation - ANSWER✔✔-V=IR
EKG monitored patient should be __________, monitor chassis should be ___________ (nonconductive).
Why - ANSWER✔✔-ungrounded, grounded. Grounded patient would be able to conduct leakage
currents. we dont want this
lb to kg - ANSWER✔✔-2.2 lb = 1 kg
F to C - ANSWER✔✔-C=5/9(F-32)
C to F - ANSWER✔✔-F=9/5C+32
3 things that change automaticity of automatic cells - ANSWER✔✔-1. slope of phase 4
2. Change of threshold potential
3. Change of resting membrane potential
a systole is represented by what portion of the ECG - ANSWER✔✔-QT interval
What is main ion transfer during systole - ANSWER✔✔-K+ seeps out, Ca2+ enters
At rest, what is intracellular/extracellular environment - ANSWER✔✔-inside negative, outside positive
What phase of AP is resting membrane potential - ANSWER✔✔-phase 4
Nodal depolarization occurs via what channel - ANSWER✔✔-Ca2+ slow channel
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,Copyright © KAYLIN 2024/2025 ACADEMIC YEAR. ALL RIGHTS RESERVED FIRST PUBLISH NOVEMBER, 2024
Cardiac muscle cell depol occurs via what channel - ANSWER✔✔-Na+ fast channel
During which phases is cell refractory - ANSWER✔✔-1,2,3
TDP caused by what mechanism usually - ANSWER✔✔-EAD's (triggered activity)
Variance - ANSWER✔✔-Take each number in sample, subtract each number from mean, square each
difference, add all, divide sum by number in sample -1
Standard deviation - ANSWER✔✔-square root of variance
P value - ANSWER✔✔-Probability of certainty / smaller p value means the more likely the result could
not occur by chance
survival curve showing % of patients surviving treatment over time - ANSWER✔✔-Kaplan - Meier curves
when measuring EGM's, earliest atrial activation usually from _____ and earliest ventricular usually from
______ - ANSWER✔✔-P wave / QRS
Morady maneuver is used to differentiate - ANSWER✔✔-differentiate AT from AVNRT/AVRT
Most common arrhythmia - ANSWER✔✔-AF
Most common SVT - ANSWER✔✔-AVNRT
What type of single use devices can be resterilized and why? - ANSWER✔✔-Diagnostic EP electrodes
because lumen and technically not a catheter because no lumen
Fr to mm - ANSWER✔✔-1 Fr = .33 mm
Tip inner diameter standard diagnostic cardiac catheters and why - ANSWER✔✔-.038 inch / because it is
supposed to be used with .035-.038 inch guide wires
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, Copyright © KAYLIN 2024/2025 ACADEMIC YEAR. ALL RIGHTS RESERVED FIRST PUBLISH NOVEMBER, 2024
What is 2 rules for CMC's like spiral or lasso - ANSWER✔✔-1. Only approved for use in LA due to chordae
tendinea
2. Only rotate shaft clockwise
Stereotaxis catheters - ANSWER✔✔-Have magnets in tip for maneuverability in response to changes in
magnetic field
What system remotely steers guided catheters - ANSWER✔✔-Hansen robotic system
ACT for using array - ANSWER✔✔-ACT 250-300
bipolar cardiac electrodes record local _________ that occur during phase _______ - ANSWER✔✔-
depolarizations / phase 0
surface EKG leads usually filtered at what - ANSWER✔✔-.1 - 100 Hz
Normal EGM filter settings - ANSWER✔✔-30 - 300 Hz
What to do if T waves interfere with A/V and why - ANSWER✔✔-Increase the high pass filter because T
waves are lower frequency as well as far field
Unipolar filter setting - ANSWER✔✔-.05 - 300 Hz
How each is measured: Diagnostic catheter OD , Inflated balloon cath OD, Needle OD, Guide wire -
ANSWER✔✔-Diag: Fr / Balloon: mm / Needle: gauge / GW: inch (thousandth of inches)
Standard sizes of micropuncture introducer sets and their purpose - ANSWER✔✔-21 gauge needle / .018
inch wire. Purpose of micropuncture introducer set is for placement of .035-.038 inch GW
Best needle to use for pericardial space via subxyphoid approach - ANSWER✔✔-Tuohy needle
Copyright ©Stuvia International BV 2010-2024 Page 3/17
IBHRE CEPS Exam Questions and
Answers 100% Pass
Ohm's law equation - ANSWER✔✔-V=IR
EKG monitored patient should be __________, monitor chassis should be ___________ (nonconductive).
Why - ANSWER✔✔-ungrounded, grounded. Grounded patient would be able to conduct leakage
currents. we dont want this
lb to kg - ANSWER✔✔-2.2 lb = 1 kg
F to C - ANSWER✔✔-C=5/9(F-32)
C to F - ANSWER✔✔-F=9/5C+32
3 things that change automaticity of automatic cells - ANSWER✔✔-1. slope of phase 4
2. Change of threshold potential
3. Change of resting membrane potential
a systole is represented by what portion of the ECG - ANSWER✔✔-QT interval
What is main ion transfer during systole - ANSWER✔✔-K+ seeps out, Ca2+ enters
At rest, what is intracellular/extracellular environment - ANSWER✔✔-inside negative, outside positive
What phase of AP is resting membrane potential - ANSWER✔✔-phase 4
Nodal depolarization occurs via what channel - ANSWER✔✔-Ca2+ slow channel
Copyright ©Stuvia International BV 2010-2024 Page 1/17
,Copyright © KAYLIN 2024/2025 ACADEMIC YEAR. ALL RIGHTS RESERVED FIRST PUBLISH NOVEMBER, 2024
Cardiac muscle cell depol occurs via what channel - ANSWER✔✔-Na+ fast channel
During which phases is cell refractory - ANSWER✔✔-1,2,3
TDP caused by what mechanism usually - ANSWER✔✔-EAD's (triggered activity)
Variance - ANSWER✔✔-Take each number in sample, subtract each number from mean, square each
difference, add all, divide sum by number in sample -1
Standard deviation - ANSWER✔✔-square root of variance
P value - ANSWER✔✔-Probability of certainty / smaller p value means the more likely the result could
not occur by chance
survival curve showing % of patients surviving treatment over time - ANSWER✔✔-Kaplan - Meier curves
when measuring EGM's, earliest atrial activation usually from _____ and earliest ventricular usually from
______ - ANSWER✔✔-P wave / QRS
Morady maneuver is used to differentiate - ANSWER✔✔-differentiate AT from AVNRT/AVRT
Most common arrhythmia - ANSWER✔✔-AF
Most common SVT - ANSWER✔✔-AVNRT
What type of single use devices can be resterilized and why? - ANSWER✔✔-Diagnostic EP electrodes
because lumen and technically not a catheter because no lumen
Fr to mm - ANSWER✔✔-1 Fr = .33 mm
Tip inner diameter standard diagnostic cardiac catheters and why - ANSWER✔✔-.038 inch / because it is
supposed to be used with .035-.038 inch guide wires
Copyright ©Stuvia International BV 2010-2024 Page 2/17
, Copyright © KAYLIN 2024/2025 ACADEMIC YEAR. ALL RIGHTS RESERVED FIRST PUBLISH NOVEMBER, 2024
What is 2 rules for CMC's like spiral or lasso - ANSWER✔✔-1. Only approved for use in LA due to chordae
tendinea
2. Only rotate shaft clockwise
Stereotaxis catheters - ANSWER✔✔-Have magnets in tip for maneuverability in response to changes in
magnetic field
What system remotely steers guided catheters - ANSWER✔✔-Hansen robotic system
ACT for using array - ANSWER✔✔-ACT 250-300
bipolar cardiac electrodes record local _________ that occur during phase _______ - ANSWER✔✔-
depolarizations / phase 0
surface EKG leads usually filtered at what - ANSWER✔✔-.1 - 100 Hz
Normal EGM filter settings - ANSWER✔✔-30 - 300 Hz
What to do if T waves interfere with A/V and why - ANSWER✔✔-Increase the high pass filter because T
waves are lower frequency as well as far field
Unipolar filter setting - ANSWER✔✔-.05 - 300 Hz
How each is measured: Diagnostic catheter OD , Inflated balloon cath OD, Needle OD, Guide wire -
ANSWER✔✔-Diag: Fr / Balloon: mm / Needle: gauge / GW: inch (thousandth of inches)
Standard sizes of micropuncture introducer sets and their purpose - ANSWER✔✔-21 gauge needle / .018
inch wire. Purpose of micropuncture introducer set is for placement of .035-.038 inch GW
Best needle to use for pericardial space via subxyphoid approach - ANSWER✔✔-Tuohy needle
Copyright ©Stuvia International BV 2010-2024 Page 3/17
