IBHRE CEPS Exam Questions and Answers 2026
Ohm's law equation - ANSWERV=IR
EKG monitored patient should be __________, monitor chassis should be
___________ (nonconductive). Why - ANSWERungrounded, grounded.
Grounded patient would be able to conduct leakage currents. we dont want
this
lb to kg - ANSWER2.2 lb = 1 kg
F to C - ANSWERC=5/9(F-32)
C to F - ANSWERF=9/5C+32
3 things that change automaticity of automatic cells - ANSWER1. 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 - ANSWERQT interval
What is main ion transfer during systole - ANSWERK+ seeps out, Ca2+ enters
,At rest, what is intracellular/extracellular environment - ANSWERinside
negative, outside positive
What phase of AP is resting membrane potential - ANSWERphase 4
Nodal depolarization occurs via what channel - ANSWERCa2+ slow channel
Cardiac muscle cell depol occurs via what channel - ANSWERNa+ fast channel
During which phases is cell refractory - ANSWER1,2,3
TDP caused by what mechanism usually - ANSWEREAD's (triggered activity)
Variance - ANSWERTake each number in sample, subtract each number from
mean, square each difference, add all, divide sum by number in sample -1
Standard deviation - ANSWERsquare root of variance
P value - ANSWERProbability 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 -
ANSWERKaplan - Meier curves
, when measuring EGM's, earliest atrial activation usually from _____ and
earliest ventricular usually from ______ - ANSWERP wave / QRS
Morady maneuver is used to differentiate - ANSWERdifferentiate AT from
AVNRT/AVRT
Most common arrhythmia - ANSWERAF
Most common SVT - ANSWERAVNRT
What type of single use devices can be resterilized and why? -
ANSWERDiagnostic EP electrodes because lumen and technically not a
catheter because no lumen
Fr to mm - ANSWER1 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
What is 2 rules for CMC's like spiral or lasso - ANSWER1. Only approved for
use in LA due to chordae tendinea
2. Only rotate shaft clockwise
Stereotaxis catheters - ANSWERHave magnets in tip for maneuverability in
response to changes in magnetic field
Ohm's law equation - ANSWERV=IR
EKG monitored patient should be __________, monitor chassis should be
___________ (nonconductive). Why - ANSWERungrounded, grounded.
Grounded patient would be able to conduct leakage currents. we dont want
this
lb to kg - ANSWER2.2 lb = 1 kg
F to C - ANSWERC=5/9(F-32)
C to F - ANSWERF=9/5C+32
3 things that change automaticity of automatic cells - ANSWER1. 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 - ANSWERQT interval
What is main ion transfer during systole - ANSWERK+ seeps out, Ca2+ enters
,At rest, what is intracellular/extracellular environment - ANSWERinside
negative, outside positive
What phase of AP is resting membrane potential - ANSWERphase 4
Nodal depolarization occurs via what channel - ANSWERCa2+ slow channel
Cardiac muscle cell depol occurs via what channel - ANSWERNa+ fast channel
During which phases is cell refractory - ANSWER1,2,3
TDP caused by what mechanism usually - ANSWEREAD's (triggered activity)
Variance - ANSWERTake each number in sample, subtract each number from
mean, square each difference, add all, divide sum by number in sample -1
Standard deviation - ANSWERsquare root of variance
P value - ANSWERProbability 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 -
ANSWERKaplan - Meier curves
, when measuring EGM's, earliest atrial activation usually from _____ and
earliest ventricular usually from ______ - ANSWERP wave / QRS
Morady maneuver is used to differentiate - ANSWERdifferentiate AT from
AVNRT/AVRT
Most common arrhythmia - ANSWERAF
Most common SVT - ANSWERAVNRT
What type of single use devices can be resterilized and why? -
ANSWERDiagnostic EP electrodes because lumen and technically not a
catheter because no lumen
Fr to mm - ANSWER1 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
What is 2 rules for CMC's like spiral or lasso - ANSWER1. Only approved for
use in LA due to chordae tendinea
2. Only rotate shaft clockwise
Stereotaxis catheters - ANSWERHave magnets in tip for maneuverability in
response to changes in magnetic field
