EKG National Exam Study Guide |Certified
Technician (CET) practice questions and correct
detailed answers Latest version 2025-2026
the one that is bunched up
which strip resembles muscle
tremor?
When does the U wave occur? repolarization of the purkinje fibers
the QRS complex occurs when when the ventricles contract
the?
what is another name for a tachycardia
heart rate over 150?
what is a lead? the colored wire that are put on the patient's limbs
what is the normal standard 10mm/sec
for calibration of an EKG
machine?
another name for the resting the baseline
phase on an EKG is ?
the term electrocardiograph is the instrument used for recording the heart's activity
?
what does the P wave show the atrial contraction
what is endocarditis? inflammation of the endocardium
what position should the supine
patient be when obtaining
an EKG?
what is a lead(s) a device that collects or conducts electrical currents
the function of the heart is ? to pump sufficient amount of blood to all the cells in the body
the heart is classified as a ? a hollow muscular organ
as blood returns to the heart the right atrium
from the body, it enters ?
where does the inferior vena from below the diaphragm
cava get its blood ?
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, 9/4/25, 11:08 PM EKG national exam
the valves of the heart are endocardium
made up of ?
who invented the willem einthoven, a dutch physiologist
electrocardiograph ?
The heart is a dual action true
pump
the left ventricle is the hardest working chamber
the right ventricle pumps false
oxygenated
venous blood to the lungs
blood enters the left atrium pulmonary veins
through the
The superior and inferior vena the right atrium
cava supply blood to
The blood is received in the True
atria when the heart is in the
diastole phase
The ventricles pump when the False
heart is in the diastole phase
normal respirations for an 12-20 times per minute
adult are
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