EKG Certification Test Questions with
Correct Answers
The use of non-invasive and painless ultrasound to examine the heart, its chambers
and valves is known as: - ANSWERSEchocardiology
Waveforms may be displayed on a screen called an: - ANSWERSElectrocardiogram
The breastbone is referred to as: - ANSWERSsternum
The pericardial sac that surrounds the heart: - ANSWERSHas 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? - ANSWERSEpicardium, myocardium,
endocardium
The atrioventricular valve between the left atrium and the left ventricle is the: -
ANSWERSMitral valve
The wall that separates the two superior chambers of the heart is called: -
ANSWERSInteratrial septum
The heart valves that separates the atria from the ventricles are called that: -
ANSWERSAtrioventricular valves
The skeleton of the heart: - ANSWERSSeparates the atria from the ventricles
The heart receives most of its own blood supply via the: - ANSWERSCoronary arteries
Regulation of the heart rate, speed of electrical conduction and strength of contraction
are influenced by the brain via the ___ nervous system. - ANSWERSCentral
The cardioaccelerator center: - ANSWERSIs 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: - ANSWERSLeft ventricle
During depolarization: - ANSWERSImpulses 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: -
ANSWERSPulmonary 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: -
ANSWERSPulmonary arteries
During which phase of the cardiac cycle do the coronary arteries fill? - ANSWERSEarly
systole
How much of the blood coming into the ventricles flows passively through the atria? -
ANSWERS80%
With EKG paper: - ANSWERSFive small squares, which make up a larger box,
represent 0.20 seconds in duration
On EKG paper horizontal measurements are used to determine the: - ANSWERSThe
heart rate
What is placed on the patient's skin to detect the heart's electrical activity? -
ANSWERSElectrodes
Each small square running horizontally represents: - ANSWERS.04 seconds
The initiation of the impulse in the SA node and its movement through the atria
produces a: - ANSWERSP wave
The T wave: - ANSWERSHas a peak which is closer to the end than the beginning
What is used as a reference point to identify the changing electrical amplitude? -
ANSWERSIsoelectric line
A calibration mark is: - ANSWERS10mm tall (2 squares high)
An electrical current traveling toward a positive electrode produces a waveform that: -
ANSWERSPoints upward
To view the limb leads, we place electrodes on the: - ANSWERSRight arm (RA), left
arm (LA), left leg (LL)
With lead 2, the positive electrode is positioned on the: - ANSWERSLeft leg
How many electrodes are used as part of a 12-lead EKG? - ANSWERS10
Which of the following is the first structure that will be seen when imaging from the
suprasternal notch? - ANSWERSAortic arch
Correct Answers
The use of non-invasive and painless ultrasound to examine the heart, its chambers
and valves is known as: - ANSWERSEchocardiology
Waveforms may be displayed on a screen called an: - ANSWERSElectrocardiogram
The breastbone is referred to as: - ANSWERSsternum
The pericardial sac that surrounds the heart: - ANSWERSHas 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? - ANSWERSEpicardium, myocardium,
endocardium
The atrioventricular valve between the left atrium and the left ventricle is the: -
ANSWERSMitral valve
The wall that separates the two superior chambers of the heart is called: -
ANSWERSInteratrial septum
The heart valves that separates the atria from the ventricles are called that: -
ANSWERSAtrioventricular valves
The skeleton of the heart: - ANSWERSSeparates the atria from the ventricles
The heart receives most of its own blood supply via the: - ANSWERSCoronary arteries
Regulation of the heart rate, speed of electrical conduction and strength of contraction
are influenced by the brain via the ___ nervous system. - ANSWERSCentral
The cardioaccelerator center: - ANSWERSIs 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: - ANSWERSLeft ventricle
During depolarization: - ANSWERSImpulses 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: -
ANSWERSPulmonary 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: -
ANSWERSPulmonary arteries
During which phase of the cardiac cycle do the coronary arteries fill? - ANSWERSEarly
systole
How much of the blood coming into the ventricles flows passively through the atria? -
ANSWERS80%
With EKG paper: - ANSWERSFive small squares, which make up a larger box,
represent 0.20 seconds in duration
On EKG paper horizontal measurements are used to determine the: - ANSWERSThe
heart rate
What is placed on the patient's skin to detect the heart's electrical activity? -
ANSWERSElectrodes
Each small square running horizontally represents: - ANSWERS.04 seconds
The initiation of the impulse in the SA node and its movement through the atria
produces a: - ANSWERSP wave
The T wave: - ANSWERSHas a peak which is closer to the end than the beginning
What is used as a reference point to identify the changing electrical amplitude? -
ANSWERSIsoelectric line
A calibration mark is: - ANSWERS10mm tall (2 squares high)
An electrical current traveling toward a positive electrode produces a waveform that: -
ANSWERSPoints upward
To view the limb leads, we place electrodes on the: - ANSWERSRight arm (RA), left
arm (LA), left leg (LL)
With lead 2, the positive electrode is positioned on the: - ANSWERSLeft leg
How many electrodes are used as part of a 12-lead EKG? - ANSWERS10
Which of the following is the first structure that will be seen when imaging from the
suprasternal notch? - ANSWERSAortic arch
