IBHRE CEPS EXAM 2026/2027 WITH QUESTIONS AND
ANSWERS
Ohm's law equation - Correct Answers V=IR
EKG monitored patient should be __________, monitor chassis should be ___________
(nonconductive). Why - Correct Answers ungrounded, grounded. Grounded patient would be
able to conduct leakage currents. we dont want this
lb to kg - Correct Answers 2.2 lb = 1 kg
F to C - Correct Answers C=5/9(F-32)
C to F - Correct Answers F=9/5C+32
3 things that change automaticity of automatic cells - Correct Answers 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 - Correct Answers QT interval
What is main ion transfer during systole - Correct Answers K+ seeps out, Ca2+ enters
At rest, what is intracellular/extracellular environment - Correct Answers inside negative,
outside positive (polarized)
What phase of cardiac AP is resting membrane potential - Correct Answers phase 4
Conductile (Nodal) depol occurs via what channel - Correct Answers Ca2+ slow channel
Contractile (muscle) depol occurs via what channel - Correct Answers Na+ fast channel
,During which phases is cell refractory - Correct Answers 1,2,3
TDP caused by what mechanism usually - Correct Answers EAD's (triggered activity)
Variance - Correct Answers Take each number in sample, subtract each number from mean,
square each difference, add all, divide sum by number in sample -1
Standard deviation - Correct Answers square root of variance
P value - Correct Answers 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 - Correct Answers Kaplan -
Meier curves
when measuring EGM's, earliest atrial activation usually from _____ and earliest ventricular usually
from ______ - Correct Answers P wave / QRS
Morady maneuver is used to differentiate - Correct Answers differentiate AT from
AVNRT/AVRT
Most common arrhythmia - Correct Answers AF
Most common SVT - Correct Answers AVNRT
What type of single use devices can be resterilized and why? - Correct Answers Diagnostic EP
electrodes because lumen and technically not a catheter because no lumen
Fr to mm - Correct Answers 1 Fr = .33 mm
Tip inner diameter standard diagnostic cardiac catheters and why - Correct Answers .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 - Correct Answers 1. Only approved for use in LA
due to chordae tendinea
2. Only rotate shaft clockwise
Stereotaxis catheters - Correct Answers Have magnets in tip for maneuverability in response
to changes in magnetic field
What system remotely steers guided catheters - Correct Answers Hansen robotic system
ACT for using array - Correct Answers ACT 250-300
bipolar cardiac electrodes record local _________ that occur during phase _______ - Correct
Answers depolarizations / phase 0
surface EKG leads usually filtered at what - Correct Answers .1 - 100 Hz
Normal EGM filter settings - Correct Answers 30 - 300 Hz
What to do if T waves interfere with A/V and why - Correct Answers Increase the high pass
filter because T waves are lower frequency as well as far field
Unipolar filter setting - Correct Answers .05 - 300 Hz
How each is measured: Diagnostic catheter OD , Inflated balloon cath OD, Needle OD, Guide wire -
Correct Answers Diag: Fr / Balloon: mm / Needle: gauge / GW: inch (thousandth of inches)
Standard sizes of micropuncture introducer sets and their purpose - Correct Answers 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 - Correct Answers Tuohy
needle
ANSWERS
Ohm's law equation - Correct Answers V=IR
EKG monitored patient should be __________, monitor chassis should be ___________
(nonconductive). Why - Correct Answers ungrounded, grounded. Grounded patient would be
able to conduct leakage currents. we dont want this
lb to kg - Correct Answers 2.2 lb = 1 kg
F to C - Correct Answers C=5/9(F-32)
C to F - Correct Answers F=9/5C+32
3 things that change automaticity of automatic cells - Correct Answers 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 - Correct Answers QT interval
What is main ion transfer during systole - Correct Answers K+ seeps out, Ca2+ enters
At rest, what is intracellular/extracellular environment - Correct Answers inside negative,
outside positive (polarized)
What phase of cardiac AP is resting membrane potential - Correct Answers phase 4
Conductile (Nodal) depol occurs via what channel - Correct Answers Ca2+ slow channel
Contractile (muscle) depol occurs via what channel - Correct Answers Na+ fast channel
,During which phases is cell refractory - Correct Answers 1,2,3
TDP caused by what mechanism usually - Correct Answers EAD's (triggered activity)
Variance - Correct Answers Take each number in sample, subtract each number from mean,
square each difference, add all, divide sum by number in sample -1
Standard deviation - Correct Answers square root of variance
P value - Correct Answers 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 - Correct Answers Kaplan -
Meier curves
when measuring EGM's, earliest atrial activation usually from _____ and earliest ventricular usually
from ______ - Correct Answers P wave / QRS
Morady maneuver is used to differentiate - Correct Answers differentiate AT from
AVNRT/AVRT
Most common arrhythmia - Correct Answers AF
Most common SVT - Correct Answers AVNRT
What type of single use devices can be resterilized and why? - Correct Answers Diagnostic EP
electrodes because lumen and technically not a catheter because no lumen
Fr to mm - Correct Answers 1 Fr = .33 mm
Tip inner diameter standard diagnostic cardiac catheters and why - Correct Answers .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 - Correct Answers 1. Only approved for use in LA
due to chordae tendinea
2. Only rotate shaft clockwise
Stereotaxis catheters - Correct Answers Have magnets in tip for maneuverability in response
to changes in magnetic field
What system remotely steers guided catheters - Correct Answers Hansen robotic system
ACT for using array - Correct Answers ACT 250-300
bipolar cardiac electrodes record local _________ that occur during phase _______ - Correct
Answers depolarizations / phase 0
surface EKG leads usually filtered at what - Correct Answers .1 - 100 Hz
Normal EGM filter settings - Correct Answers 30 - 300 Hz
What to do if T waves interfere with A/V and why - Correct Answers Increase the high pass
filter because T waves are lower frequency as well as far field
Unipolar filter setting - Correct Answers .05 - 300 Hz
How each is measured: Diagnostic catheter OD , Inflated balloon cath OD, Needle OD, Guide wire -
Correct Answers Diag: Fr / Balloon: mm / Needle: gauge / GW: inch (thousandth of inches)
Standard sizes of micropuncture introducer sets and their purpose - Correct Answers 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 - Correct Answers Tuohy
needle
