EKG National Exam 2026 EKG Tech National Exam Latest Update 2026 Questions and Correct Answers Rated A+ Questions and Correct Answers Rated A+

EKG National Exam 2026 EKG Tech National
Exam Latest Update 2026 Questions and
Correct Answers Rated A+ Questions and
Correct Answers Rated A+
What are the four chambers of the heart? -Answer-1. Right Atrium
2. Right Ventricle
3. Left Atrium
4. Left Ventricle

What is the name of the Structure dividing the Heart Chambers into
the right and left Heart? -Answer-Septum

What is the function of the Right side of the heart? -Answer-Pumps
blood to the Lungs

What is the function of the Left side of the heart? -Answer-Pumps
blood to the body

What are the three layers of the heart? -Answer-1. Endocardium
2. Myocardium
3. Epicardium (Pericardium)

What is the Endocardium layer of the heart? -Answer-It the inner layer
if the heart wall.

What is the function of the Endometrium? -Answer-1. It forms the
inner lining of the heart wall --> Promoting Laminar Blood flow though
the heart.
2. It also forms the heart Valves.

,What is the Myocardium layer of the heart? -Answer-The middle layer
of the heart:
Is the Muscle that pumps the blood forward

What is the Epicardium layer of the heart? -Answer-It is the outer layer
of the heart wall that consist of connective tissue this forms the
pericardial sac.

What is the pericardial sac of the heart? -Answer-It is a protective
layer containing fluid allowing the heart to function without friction.

What are the structures that forms the heart valves? -Answer-1.
Leaflet (flaps)
2. Chordae Tendineae
3. Papillary Muscles

What is the function of the heart? -Answer-Controls the direction of the
blood flow though the heart, thus preventing flowing backwards
(regurgitation) of blood.

What are the names of the four valves of the heart? -Answer-1.
Tricuspid Valve
2. Pulmonary Valve
3. Mitral Valve
4. Aortic Valve

Synchronized valve closure preventing blood from flowing backwards.

What are the names of the Atrioventricular Valves? -Answer-1.
Tricuspid Valves (right side)
2. Mitral Valves (left side)

,What are the names of the semilunar Valves? -Answer-1. Pulmonary
Valve (Right side)
2. Aortic Valve (Left side)

State the Right sided blood flow in order? -Answer-1. Superior and
Inferior Vena Cava
2. Right Atrium
3. Tricuspid Valve
4. Right Ventricle
5. Pulmonary Valves
6. Pulmonary Artery
7. Lungs

State the Left sided blood flow in order? -Answer-1. Lungs
2. Right and Left Pulmonary Veins
3. Left Atrium
4. Mitral Valve
5. Left Ventricles
6. Aortic Valve
7. Aorta

What are the Physiological aspects of the Coronary Artery System? -
Answer-It is a low-pressure system, with coronary arteries arise from
the root of the Aorta.
The flow of blood occurs during diastole.
During Systole:
1. Aortic Valve occlude the orifices
2. Pressure rises making the coronary vessels tortuous.

The Anatomy of the Coronary Artery System: What are the names of
the arteries? -Answer-1. Right Coronary Artery:

, a. Posterior Descending artery
b. Right Marginal Artery

2. Left Coronary Artery
a. Left Circumflex Artery
b. Left Marginal Artery
c. Left Anterior Descending artery
d. Diagonal Branch

What structures of the Heart is oxygenated by blood supplied by the
Right Coronary artery? -Answer-Right Ventricle
Inferior wall of the Left Ventricle
SA-node
AV-node (90% of the population)

What structures of the Heart is oxygenated blood supplied by the Left
Coronary artery? -Answer-1. Left Circumflex artery (LCx):
Posterolateral aspect of the Left Ventricle

2. Left Anterior Descending Artery (LAD):
Anterior wall of the Left Ventricles


-> LAD occlusion can lead to arrhythmias --> Death

What happen when coronary arteries have decreased percussion? -
Answer-Formation of Collateral vessels => delaying symptoms of
heart disease.

How does the heart conducting system work? -Answer-1. The
Sinoatrial (SA) node initiate electrical impulse that flow though both
atria, then into the Atrioventricular (AV) node.