Medca EKG Practice UPDATED ACTUAL
Exam Questions and CORRECT Answers
A device on the skin that picks up electrical impulses given off by the heart is known as -
CORRECT ANSWER- electrode
The heart is located - CORRECT ANSWER- on the left side of the chest
The body returns oxygen-poor blood to the heart via the - CORRECT ANSWER- vena cavae
In lead l, activity of the heart is being measured from - CORRECT ANSWER- the right arm
to the left arm
The human heart weighs approximately - CORRECT ANSWER- 11 ounces
What position should the patient be in for an ECG - CORRECT ANSWER- supine
Where is the chest electrode V2 located - CORRECT ANSWER- at the fourth intercostal
space at the left margin of the sternum
Lead l, ll, lll are called - CORRECT ANSWER- standard leads
The right and left atrium are the __________chambers - CORRECT ANSWER- receiving
The atria contains what kind of blood - CORRECT ANSWER- both oxygenated and
deoxygenated blood
The __________ valve separates the left ventricle from the aorta - CORRECT ANSWER-
aortic
, The __________ regulate the flow of blood into and out of the proper chambers - CORRECT
ANSWER- valves
Which electrode is used as a ground reference - CORRECT ANSWER- right leg
The standard ECG consists of how many leads - CORRECT ANSWER- 12
The contraction of the heart muscle is cause by the flow of ___________ through the muscle
tissue - CORRECT ANSWER- electrical impulse
The __________ pressure is the pressure inside the arteries during ventricular contraction; when
blood is pumped from the heart to the body - CORRECT ANSWER- systolic
The ECG tracing should be performed in a quiet environment because - CORRECT ANSWER-
interference is minimized
(True or False) The ECG records the actual image of the heart - CORRECT ANSWER- false
The hardest working chamber if the heart is the - CORRECT ANSWER- left ventricle
What is the term used to refer to an electrocardiogram that is within normal limits - CORRECT
ANSWER- normal sinus rhythm
The augmented leads are - CORRECT ANSWER- unipolar
The epicardium is the - CORRECT ANSWER- outer layer of the heart wall
Exam Questions and CORRECT Answers
A device on the skin that picks up electrical impulses given off by the heart is known as -
CORRECT ANSWER- electrode
The heart is located - CORRECT ANSWER- on the left side of the chest
The body returns oxygen-poor blood to the heart via the - CORRECT ANSWER- vena cavae
In lead l, activity of the heart is being measured from - CORRECT ANSWER- the right arm
to the left arm
The human heart weighs approximately - CORRECT ANSWER- 11 ounces
What position should the patient be in for an ECG - CORRECT ANSWER- supine
Where is the chest electrode V2 located - CORRECT ANSWER- at the fourth intercostal
space at the left margin of the sternum
Lead l, ll, lll are called - CORRECT ANSWER- standard leads
The right and left atrium are the __________chambers - CORRECT ANSWER- receiving
The atria contains what kind of blood - CORRECT ANSWER- both oxygenated and
deoxygenated blood
The __________ valve separates the left ventricle from the aorta - CORRECT ANSWER-
aortic
, The __________ regulate the flow of blood into and out of the proper chambers - CORRECT
ANSWER- valves
Which electrode is used as a ground reference - CORRECT ANSWER- right leg
The standard ECG consists of how many leads - CORRECT ANSWER- 12
The contraction of the heart muscle is cause by the flow of ___________ through the muscle
tissue - CORRECT ANSWER- electrical impulse
The __________ pressure is the pressure inside the arteries during ventricular contraction; when
blood is pumped from the heart to the body - CORRECT ANSWER- systolic
The ECG tracing should be performed in a quiet environment because - CORRECT ANSWER-
interference is minimized
(True or False) The ECG records the actual image of the heart - CORRECT ANSWER- false
The hardest working chamber if the heart is the - CORRECT ANSWER- left ventricle
What is the term used to refer to an electrocardiogram that is within normal limits - CORRECT
ANSWER- normal sinus rhythm
The augmented leads are - CORRECT ANSWER- unipolar
The epicardium is the - CORRECT ANSWER- outer layer of the heart wall
