IBHRE CEPS EXAM QUESTIONS AND CORRECT
ANSWERS| LATEST UPDATE
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 represented by what portion of the ECG
QT interval
What is main ion transfer during systole
K+ seeps out, Ca2+ enters
At rest, what is intracellular/extracellular environment
inside negative, outside positive
What phase of AP is resting membrane potential
phase 4
,Nodal depolarization occurs via what channel
Ca2+ slow channel
Cardiac muscle cell depolarization occurs via what channel
Na+ fast channel
During which phases is cell refractory
1,2,3
TDP caused by what mechanism usually
EAD's (triggered activity)
Variance
Take each number in sample, subtract each number from mean, square each
difference, add all, divide sum by number in sample -1
Standard deviation
square root of variance
, P value
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
Kaplan - Meier curves
when measuring EGM's, earliest atrial activation usually from _____ and earliest
ventricular usually from ______
P wave / QRS
Morady maneuver is used to differentiate
differentiate AT from AVNRT/AVRT
Most common arrhythmia
AF
ANSWERS| LATEST UPDATE
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 represented by what portion of the ECG
QT interval
What is main ion transfer during systole
K+ seeps out, Ca2+ enters
At rest, what is intracellular/extracellular environment
inside negative, outside positive
What phase of AP is resting membrane potential
phase 4
,Nodal depolarization occurs via what channel
Ca2+ slow channel
Cardiac muscle cell depolarization occurs via what channel
Na+ fast channel
During which phases is cell refractory
1,2,3
TDP caused by what mechanism usually
EAD's (triggered activity)
Variance
Take each number in sample, subtract each number from mean, square each
difference, add all, divide sum by number in sample -1
Standard deviation
square root of variance
, P value
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
Kaplan - Meier curves
when measuring EGM's, earliest atrial activation usually from _____ and earliest
ventricular usually from ______
P wave / QRS
Morady maneuver is used to differentiate
differentiate AT from AVNRT/AVRT
Most common arrhythmia
AF
