RCES Exam Questions with Correct
Answers| Latest Update
What is ARVD and when does it occur?
Arrhythmogenic Right Ventricular dysplasia; occurs when the RV myocardium is
replaced by fatty and fibrotic tissue
What are afterdepolarizations?
Abnormal secondary voltage depolarizations during the cardiac action potential
What are the two types of afterdepolarizations?
EADs (early after depolarizations) and DADs (delayed afterdepolarizations
What does the QT interval represent?
ventricular depolarization and repolarization
What is antedromic conduction?
,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 orthodromic conduction?
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?
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?
50-140ms
What is a normal HV interval?
35-55ms
, What is a normal HBE?
<30ms
What is a normal PA interval?
25-55ms
What is a normal QTc?
For men: <450, For women <470
What is a normal QRS interval?
<120ms
What is Ohm's Law?
V = IR; V= voltage measured in volts, I= current measured in amps and R=
resistance ohms
What is the most likely rhythm is capture beats or fusion beats are seen on the
EKG?
Ventricular Tachycardia because both beats demonstrate AV dissociation
Answers| Latest Update
What is ARVD and when does it occur?
Arrhythmogenic Right Ventricular dysplasia; occurs when the RV myocardium is
replaced by fatty and fibrotic tissue
What are afterdepolarizations?
Abnormal secondary voltage depolarizations during the cardiac action potential
What are the two types of afterdepolarizations?
EADs (early after depolarizations) and DADs (delayed afterdepolarizations
What does the QT interval represent?
ventricular depolarization and repolarization
What is antedromic conduction?
,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 orthodromic conduction?
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?
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?
50-140ms
What is a normal HV interval?
35-55ms
, What is a normal HBE?
<30ms
What is a normal PA interval?
25-55ms
What is a normal QTc?
For men: <450, For women <470
What is a normal QRS interval?
<120ms
What is Ohm's Law?
V = IR; V= voltage measured in volts, I= current measured in amps and R=
resistance ohms
What is the most likely rhythm is capture beats or fusion beats are seen on the
EKG?
Ventricular Tachycardia because both beats demonstrate AV dissociation
