age 1 of 16
RCES Registered Cardiac Electrophysiology Specialist
TEST STUDY GUIDE 2025/2026 ACCURATE QUESTIONS
AND VERIFIED CORRECT SOLUTIONS WITH
RATIONALES || 100% GUARANTEED PASS <LATEST
VERSION>
what is the pathway of excitation in the heart
......ANSWER........1. SA node depolarizes atria
2. AV node
3. depolarize top of septum from left to right
3. depolarize anteroseptal region of myocardium toward apex
4. depolarize most of ventricular myocardium from inside to out
5. depolarize posterior portion of base of left ventricle
,age 2 of 16
6. all ventricles depolarize
wave of excitation is carried by ......ANSWER........propogating
action potentials
just like in nerves, AP's are due to ......ANSWER........alternation in
membrane permeabiliyt due to channels
SA node function ......ANSWER........pacemaking
impulse propogation is through what two structures
......ANSWER........AV node and His/Purkinje systems
intitating and controlling contraction occurs in
......ANSWER........atrial and ventricular muscles
two main classes of cardiac action potentials. what do we base
these categorizations on? ......ANSWER........fast and slow AP.
, age 3 of 16
based on rate of the initial depoalrization of the AP, not on the
duration
2 examples of fast action potentials ......ANSWER........1.
contraction of atrial and ventricular muscle
2. fast impulse propogation in the His/Purkinje
slow action potential 2 examples ......ANSWER........SA and AV
node
3 characteristics of fast action potentials (graph)
......ANSWER........1. long, around 300 ms
2. has plateau phase of depolarization
3. stable resting potential (stays at hyperpolarized unless
something happens)
RCES Registered Cardiac Electrophysiology Specialist
TEST STUDY GUIDE 2025/2026 ACCURATE QUESTIONS
AND VERIFIED CORRECT SOLUTIONS WITH
RATIONALES || 100% GUARANTEED PASS <LATEST
VERSION>
what is the pathway of excitation in the heart
......ANSWER........1. SA node depolarizes atria
2. AV node
3. depolarize top of septum from left to right
3. depolarize anteroseptal region of myocardium toward apex
4. depolarize most of ventricular myocardium from inside to out
5. depolarize posterior portion of base of left ventricle
,age 2 of 16
6. all ventricles depolarize
wave of excitation is carried by ......ANSWER........propogating
action potentials
just like in nerves, AP's are due to ......ANSWER........alternation in
membrane permeabiliyt due to channels
SA node function ......ANSWER........pacemaking
impulse propogation is through what two structures
......ANSWER........AV node and His/Purkinje systems
intitating and controlling contraction occurs in
......ANSWER........atrial and ventricular muscles
two main classes of cardiac action potentials. what do we base
these categorizations on? ......ANSWER........fast and slow AP.
, age 3 of 16
based on rate of the initial depoalrization of the AP, not on the
duration
2 examples of fast action potentials ......ANSWER........1.
contraction of atrial and ventricular muscle
2. fast impulse propogation in the His/Purkinje
slow action potential 2 examples ......ANSWER........SA and AV
node
3 characteristics of fast action potentials (graph)
......ANSWER........1. long, around 300 ms
2. has plateau phase of depolarization
3. stable resting potential (stays at hyperpolarized unless
something happens)
