RCES Exam Questions and Answers with
Verified Solutions | Latest Updated 2026
What is ARVD and when does it Arrhythmogenic Right Ventricular
occur? 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 EADs (early after depolarizations) and
afterdepolarizations? DADs
(delayed afterdepolarizations
What does the QT interval ventricular depolarization and
represent? 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 1.) Parallel pathways that are connected
sustain proximally
a reentry circuit? 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
Verified Solutions | Latest Updated 2026
What is ARVD and when does it Arrhythmogenic Right Ventricular
occur? 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 EADs (early after depolarizations) and
afterdepolarizations? DADs
(delayed afterdepolarizations
What does the QT interval ventricular depolarization and
represent? 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 1.) Parallel pathways that are connected
sustain proximally
a reentry circuit? 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