IBHRE CEPS PROFESSIONAL PREP
QUESTIONS WITH COMPLETE VERIFIED
SOLUTIONS
●● 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
●● 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
QUESTIONS WITH COMPLETE VERIFIED
SOLUTIONS
●● 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
●● 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
