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IBHRE CEPS EXAM QUESTIONS AND ANSWERS
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IBHRE CEPS EXAM QUESTIONSAND ANSWERS
Ohm's law equation - ANSWER V=IR
The EKG monitored patient should be __________, and the monitor chassis
should be __________ (nonconductive). Why - ANSWER ungrounded or
grounded. Grounded patients can conduct leakage currents. We don't want this.
lb to kg - ANSWER: 2.2 pounds = one kilogram.
F to C: ANSWER C=5/9(F-32).
C to F - ANSWER F = 9/5C + 32
Three factors that affect the automaticity of automatic cells - ANSWER 1.
Slope of Phase 4
2. Change in the threshold potential
3. Change in the resting membrane potential
What component of the ECG represents a systole? ANSWER QT interval.
What is the primary ion transport during systole? ANSWER: K+ seeps out and
Ca2+ enters.
At rest, what is the intracellular/extracellular environment - ANSWER within
negative, outside positive
What phase of AP is resting membrane potential? ANSWER: phase 4.
What channel causes nodal depolarization? ANSWER: Ca2+ slow channel.
Cardiac muscle cell depol happens via which channel? ANSWER Na+ fast
channel.
, Which phase is cell refractory - ANSWER 1, 2, 3?
TDP is mainly induced by the following mechanism: ANSWER EADs
(triggered activity).
Variance - ANSWER Take each number in sample, remove each number from
the mean, square each difference, add all, and divide sum by the number in
sample -1.
Standard deviation - square root of variance
P value - ANSWER Probability of certainty / A smaller p value indicates that
the outcome is unlikely to occur by chance.
Kaplan-Meier curves indicate the percentage of patients who survive treatment
over time.
When measuring EGMs, the earliest atrial activation is usually from _____, and
the earliest ventricular activation is usually from ______.
The Morady maneuver is used to discriminate between AT and AVNRT/AVRT.
Most common arrhythmia: AF
Most common SVT: AVNRT
What kinds of single-use devices can be resterilized, and why? - ANSWER
Because there is no lumen, diagnostic EP electrodes are not catheters.
ANSWER 1 Fr = 0.33 mm.
Tip inner diameter standard diagnostic cardiac catheters and why -
ANSWER.038 inch/because it is designed to be used with.035-.038 inch guide
wires.
What are the two rules for CMCs like spiral or lasso? - ANSWER 1. Only
approved for usage in LA owing to chordae tendinea.
2. Only spin the shaft clockwise.
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