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SHARP EKG Exam 2026 (Actual Exam)
Questions with verified Answers (Latest
Update 2026) UPDATE!!
What is a second degree Second Degree AV block Type 1 (Mobitz 1
or Wenckebach)? ......ANSWER.....The sinus impulse takes longer
to travel through the AV node which is seen by a progressively
lengthening PR interval from beat to beat eventually dropping a
QRS
Which drug could help a Second Degree AV Block Type 1?
......ANSWER.....Atropine
What is a Second Degree AV Block Type 2? ......ANSWER.....There
is more than 1 P-wave before each QRS complex with only one of
the impulses being conducted to the ventricles
-PR interval consistent
Is a Mobitz II a result of a vagal tone or drug toxicity?
......ANSWER.....No
Why are Second Degree AV blocks type 2 dangerous?
......ANSWER.....Can potentially lead to a Third Degree AV Block or
asystole
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What is a Third Degree AV block? ......ANSWER.....Atria and
ventricles beat independently of each other
-P waves occur at regular intervals across the rhythm strips but
have no relationship with QRS's
How does the QRS appear in a Third Degree AV block if the block
is in the level of the bundle branches? ......ANSWER.....Widened
How many muscle layers of the heart are there and what are they?
......ANSWER.....1. Endocardium
2. Myocardium
3. Epicardium/pericardium
What is the endocardium? ......ANSWER.....innermost layer of the
heart
What is the myocardium? ......ANSWER.....Muscular layer that
comprises most of the heart wall
What is the epicardium/pericardium?
......ANSWER.....Compromises the sac around the heart; provides
protection to the heart
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What is the tricuspid valve? ......ANSWER.....separates the right
atrium from the right ventricle
What is the pulmonic valve? ......ANSWER.....Separating right
ventricle from the pulmonary arteries
What is the mitral valve? ......ANSWER.....valve between the left
atrium and the left ventricle.
What is the aortic valve? ......ANSWER.....valve between left
ventricle and aorta
What is the right coronary artery? ......ANSWER.....Supplies the
right atrium and ventricle, inferior and posterior surface of the left
ventricle.
What is the left anterior descending artery? (3) ......ANSWER.....1.
Branch of the left coronary artery
2. Supplies anterior surface of the left ventricle and septum
3. Supplies the bundle branch system
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What is the circumflex artery? (2) ......ANSWER.....1. Branch of the
left coronary artery
2. Supplies the lateral and posterior portions of the left ventricle
Impulse traveling toward a positive electrode will show what kind
of a deflection? ......ANSWER.....Positive deflection from the
isoelectric line
Impulses traveling away from a positive electrode will show what?
......ANSWER.....Negative deflection
Impulses traveling perpendicular (at a right angle) to a positive
electrode will show what? ......ANSWER.....Equiphasic
What are the 5 characteristics of a normal P wave?
......ANSWER.....1) smooth and rounded
2) <2.5mm in height
3) <0.12 in width
4) positive deflection in lead 2
5) one P wave for each QRS
What are the five different types of ABNORMAL P waves?
......ANSWER.....1. Tall and peaked
SHARP EKG Exam 2026 (Actual Exam)
Questions with verified Answers (Latest
Update 2026) UPDATE!!
What is a second degree Second Degree AV block Type 1 (Mobitz 1
or Wenckebach)? ......ANSWER.....The sinus impulse takes longer
to travel through the AV node which is seen by a progressively
lengthening PR interval from beat to beat eventually dropping a
QRS
Which drug could help a Second Degree AV Block Type 1?
......ANSWER.....Atropine
What is a Second Degree AV Block Type 2? ......ANSWER.....There
is more than 1 P-wave before each QRS complex with only one of
the impulses being conducted to the ventricles
-PR interval consistent
Is a Mobitz II a result of a vagal tone or drug toxicity?
......ANSWER.....No
Why are Second Degree AV blocks type 2 dangerous?
......ANSWER.....Can potentially lead to a Third Degree AV Block or
asystole
,2|Page
What is a Third Degree AV block? ......ANSWER.....Atria and
ventricles beat independently of each other
-P waves occur at regular intervals across the rhythm strips but
have no relationship with QRS's
How does the QRS appear in a Third Degree AV block if the block
is in the level of the bundle branches? ......ANSWER.....Widened
How many muscle layers of the heart are there and what are they?
......ANSWER.....1. Endocardium
2. Myocardium
3. Epicardium/pericardium
What is the endocardium? ......ANSWER.....innermost layer of the
heart
What is the myocardium? ......ANSWER.....Muscular layer that
comprises most of the heart wall
What is the epicardium/pericardium?
......ANSWER.....Compromises the sac around the heart; provides
protection to the heart
,3|Page
What is the tricuspid valve? ......ANSWER.....separates the right
atrium from the right ventricle
What is the pulmonic valve? ......ANSWER.....Separating right
ventricle from the pulmonary arteries
What is the mitral valve? ......ANSWER.....valve between the left
atrium and the left ventricle.
What is the aortic valve? ......ANSWER.....valve between left
ventricle and aorta
What is the right coronary artery? ......ANSWER.....Supplies the
right atrium and ventricle, inferior and posterior surface of the left
ventricle.
What is the left anterior descending artery? (3) ......ANSWER.....1.
Branch of the left coronary artery
2. Supplies anterior surface of the left ventricle and septum
3. Supplies the bundle branch system
, 4|Page
What is the circumflex artery? (2) ......ANSWER.....1. Branch of the
left coronary artery
2. Supplies the lateral and posterior portions of the left ventricle
Impulse traveling toward a positive electrode will show what kind
of a deflection? ......ANSWER.....Positive deflection from the
isoelectric line
Impulses traveling away from a positive electrode will show what?
......ANSWER.....Negative deflection
Impulses traveling perpendicular (at a right angle) to a positive
electrode will show what? ......ANSWER.....Equiphasic
What are the 5 characteristics of a normal P wave?
......ANSWER.....1) smooth and rounded
2) <2.5mm in height
3) <0.12 in width
4) positive deflection in lead 2
5) one P wave for each QRS
What are the five different types of ABNORMAL P waves?
......ANSWER.....1. Tall and peaked
