RCES EXAM WITH REVISED SOLUTIONS
EXAM QUESTIONS WITH VERIFIED
SOLUTIONS GRADED A+ LATEST
UPGRADE
What is orthodromic conduction? --CORRECT ANSWER--A type of
AVRT in which the impulse travels down the AV node and up the
pathway--this type of conduction is more common
What 3 criteria are needed to sustain a reentry circuit? --CORRECT
ANSWER--1.) Parallel pathways that are connected proximally and
distally, forming an electrical circuit 2.) One of the pathways needs a
refractory period that's substantially longer than the refractory period
of the other 3.) The pathway with the shorter refractory period must
conduct electrical impulse more slowly than the other pathway
What is a normal AH interval? --CORRECT ANSWER--50-140ms
What is a normal HV interval? --CORRECT ANSWER--35-55ms
What is a normal HBE? --CORRECT ANSWER--<30ms
Page 1 of 19
,What is a normal PA interval? --CORRECT ANSWER--25-55ms
What is a normal QTc? --CORRECT ANSWER--For men: <450, For
women <470
What is a normal QRS interval? --CORRECT ANSWER--<120ms
What is Ohm's Law? --CORRECT ANSWER--V = IR; V= voltage
measured in volts, I= current measured in amps and R= resistance
ohms
What is ARVD and when does it occur? --CORRECT ANSWER--
Arrhythmogenic Right Ventricular dysplasia; occurs when the RV
myocardium is replaced by fatty and fibrotic tissue
What are afterdepolarizations? --CORRECT ANSWER--Abnormal
secondary voltage depolarizations during the cardiac action potential
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, What are the two types of afterdepolarizations? --CORRECT
ANSWER--EADs (early after depolarizations) and DADs (delayed
afterdepolarizations
What does the QT interval represent? --CORRECT ANSWER--
ventricular depolarization and repolarization
What is antedromic conduction? --CORRECT ANSWER--
Antedromic conduction is a type of AVRT in which the impulse
travels down the pathway and up the AV node--seen in WPW
What is the most likely rhythm is capture beats or fusion beats are
seen on the EKG? --CORRECT ANSWER--Ventricular Tachycardia
because both beats demonstrate AV dissociation
When do EADs occur? --CORRECT ANSWER--EADs are seen in
phase 2 or phase 3 of the action potential
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EXAM QUESTIONS WITH VERIFIED
SOLUTIONS GRADED A+ LATEST
UPGRADE
What is orthodromic conduction? --CORRECT ANSWER--A type of
AVRT in which the impulse travels down the AV node and up the
pathway--this type of conduction is more common
What 3 criteria are needed to sustain a reentry circuit? --CORRECT
ANSWER--1.) Parallel pathways that are connected proximally and
distally, forming an electrical circuit 2.) One of the pathways needs a
refractory period that's substantially longer than the refractory period
of the other 3.) The pathway with the shorter refractory period must
conduct electrical impulse more slowly than the other pathway
What is a normal AH interval? --CORRECT ANSWER--50-140ms
What is a normal HV interval? --CORRECT ANSWER--35-55ms
What is a normal HBE? --CORRECT ANSWER--<30ms
Page 1 of 19
,What is a normal PA interval? --CORRECT ANSWER--25-55ms
What is a normal QTc? --CORRECT ANSWER--For men: <450, For
women <470
What is a normal QRS interval? --CORRECT ANSWER--<120ms
What is Ohm's Law? --CORRECT ANSWER--V = IR; V= voltage
measured in volts, I= current measured in amps and R= resistance
ohms
What is ARVD and when does it occur? --CORRECT ANSWER--
Arrhythmogenic Right Ventricular dysplasia; occurs when the RV
myocardium is replaced by fatty and fibrotic tissue
What are afterdepolarizations? --CORRECT ANSWER--Abnormal
secondary voltage depolarizations during the cardiac action potential
Page 2 of 19
, What are the two types of afterdepolarizations? --CORRECT
ANSWER--EADs (early after depolarizations) and DADs (delayed
afterdepolarizations
What does the QT interval represent? --CORRECT ANSWER--
ventricular depolarization and repolarization
What is antedromic conduction? --CORRECT ANSWER--
Antedromic conduction is a type of AVRT in which the impulse
travels down the pathway and up the AV node--seen in WPW
What is the most likely rhythm is capture beats or fusion beats are
seen on the EKG? --CORRECT ANSWER--Ventricular Tachycardia
because both beats demonstrate AV dissociation
When do EADs occur? --CORRECT ANSWER--EADs are seen in
phase 2 or phase 3 of the action potential
Page 3 of 19
