EKG CERTIFICATION TEST NEW QUESTION AND ANSWERS
2022
The use of non-invasive and painless ultrasound to examine the heart, its chambers
and valves is known as: - CORRECT ANSWER Echocardiology
Waveforms may be displayed on a screen called an: - CORRECT ANSWER
Electrocardiogram
The breastbone is referred to as: - CORRECT ANSWER sternum
The pericardial sac that surrounds the heart: - CORRECT ANSWER Has a tough
fibrous outer layer called the visceral pericardium and an inner, thin transparent lining
called the fibrous pericardium
What are the 3 layers of the heart wall? - CORRECT ANSWER Epicardium,
myocardium, endocardium
The atrioventricular valve between the left atrium and the left ventricle is the: -
CORRECT ANSWER Mitral valve
The wall that separates the two superior chambers of the heart is called: - CORRECT
ANSWER Interatrial septum
The heart valves that separates the atria from the ventricles are called that: -
CORRECT ANSWER Atrioventricular valves
The skeleton of the heart: - CORRECT ANSWER Separates the atria from the
ventricles
The heart receives most of its own blood supply via the: - CORRECT ANSWER
Coronary arteries
Regulation of the heart rate, speed of electrical conduction and strength of contraction
are influenced by the brain via the ___ nervous system. - CORRECT ANSWER Central
The cardioaccelerator center: - CORRECT ANSWER Is part of the sympathetic nervous
system
The most muscular chamber of the heart that forces blood through the aortic valve into
the aorta would be the: - CORRECT ANSWER Left ventricle
During depolarization: - CORRECT ANSWER Impulses are generated and transmitted
when positively charged ions move inside the cell causing the interior to become
positively charged
, Blood returns to the heart from the lungs via four blood vessels called: - CORRECT
ANSWER Pulmonary veins
Blood travels to the lungs where carbon dioxide is unloaded and oxygen is loaded. The
blood vessels that carry the blood from the heart to the lungs are: - CORRECT
ANSWER Pulmonary arteries
During which phase of the cardiac cycle do the coronary arteries fill? - CORRECT
ANSWER Early systole
How much of the blood coming into the ventricles flows passively through the atria? -
CORRECT ANSWER 80%
With EKG paper: - CORRECT ANSWER Five small squares, which make up a larger
box, represent 0.20 seconds in duration
On EKG paper horizontal measurements are used to determine the: - CORRECT
ANSWER The heart rate
What is placed on the patient's skin to detect the heart's electrical activity? - CORRECT
ANSWER Electrodes
Each small square running horizontally represents: - CORRECT ANSWER .04 seconds
The initiation of the impulse in the SA node and its movement through the atria
produces a: - CORRECT ANSWER P wave
The T wave: - CORRECT ANSWER Has a peak which is closer to the end than the
beginning
What is used as a reference point to identify the changing electrical amplitude? -
CORRECT ANSWER Isoelectric line
A calibration mark is: - CORRECT ANSWER 10mm tall (2 squares high)
An electrical current traveling toward a positive electrode produces a waveform that: -
CORRECT ANSWER Points upward
To view the limb leads, we place electrodes on the: - CORRECT ANSWER Right arm
(RA), left arm (LA), left leg (LL)
With lead 2, the positive electrode is positioned on the: - CORRECT ANSWER Left leg
How many electrodes are used as part of a 12-lead EKG? - CORRECT ANSWER 10
2022
The use of non-invasive and painless ultrasound to examine the heart, its chambers
and valves is known as: - CORRECT ANSWER Echocardiology
Waveforms may be displayed on a screen called an: - CORRECT ANSWER
Electrocardiogram
The breastbone is referred to as: - CORRECT ANSWER sternum
The pericardial sac that surrounds the heart: - CORRECT ANSWER Has a tough
fibrous outer layer called the visceral pericardium and an inner, thin transparent lining
called the fibrous pericardium
What are the 3 layers of the heart wall? - CORRECT ANSWER Epicardium,
myocardium, endocardium
The atrioventricular valve between the left atrium and the left ventricle is the: -
CORRECT ANSWER Mitral valve
The wall that separates the two superior chambers of the heart is called: - CORRECT
ANSWER Interatrial septum
The heart valves that separates the atria from the ventricles are called that: -
CORRECT ANSWER Atrioventricular valves
The skeleton of the heart: - CORRECT ANSWER Separates the atria from the
ventricles
The heart receives most of its own blood supply via the: - CORRECT ANSWER
Coronary arteries
Regulation of the heart rate, speed of electrical conduction and strength of contraction
are influenced by the brain via the ___ nervous system. - CORRECT ANSWER Central
The cardioaccelerator center: - CORRECT ANSWER Is part of the sympathetic nervous
system
The most muscular chamber of the heart that forces blood through the aortic valve into
the aorta would be the: - CORRECT ANSWER Left ventricle
During depolarization: - CORRECT ANSWER Impulses are generated and transmitted
when positively charged ions move inside the cell causing the interior to become
positively charged
, Blood returns to the heart from the lungs via four blood vessels called: - CORRECT
ANSWER Pulmonary veins
Blood travels to the lungs where carbon dioxide is unloaded and oxygen is loaded. The
blood vessels that carry the blood from the heart to the lungs are: - CORRECT
ANSWER Pulmonary arteries
During which phase of the cardiac cycle do the coronary arteries fill? - CORRECT
ANSWER Early systole
How much of the blood coming into the ventricles flows passively through the atria? -
CORRECT ANSWER 80%
With EKG paper: - CORRECT ANSWER Five small squares, which make up a larger
box, represent 0.20 seconds in duration
On EKG paper horizontal measurements are used to determine the: - CORRECT
ANSWER The heart rate
What is placed on the patient's skin to detect the heart's electrical activity? - CORRECT
ANSWER Electrodes
Each small square running horizontally represents: - CORRECT ANSWER .04 seconds
The initiation of the impulse in the SA node and its movement through the atria
produces a: - CORRECT ANSWER P wave
The T wave: - CORRECT ANSWER Has a peak which is closer to the end than the
beginning
What is used as a reference point to identify the changing electrical amplitude? -
CORRECT ANSWER Isoelectric line
A calibration mark is: - CORRECT ANSWER 10mm tall (2 squares high)
An electrical current traveling toward a positive electrode produces a waveform that: -
CORRECT ANSWER Points upward
To view the limb leads, we place electrodes on the: - CORRECT ANSWER Right arm
(RA), left arm (LA), left leg (LL)
With lead 2, the positive electrode is positioned on the: - CORRECT ANSWER Left leg
How many electrodes are used as part of a 12-lead EKG? - CORRECT ANSWER 10
