EKG NATIONAL EXAM 2026
QUESTIONS AND ANSWERS | A+
GRADED | WITH EXPERT SOLUTIONS
when the heart goes down to 40-60 beats per minute where is the
impulse generated ? - correct answer -usually in the AV Node
which blood vessel leaves the heart and carries to all parts of the
body? - correct answer -Aorta
when measuring the height of peaks in an EKG what number
does each large square represent? - correct answer -5 millimeters
by 5 millimeters
each small square in an EKG is? - correct answer -0.04 seconds
how can you calculate each heart rate of an EKG rate? - correct
answer -count the number of complete complexes in a 3 or 6
interval and multiply by 20 or 10
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if the ventricles are in the systole phase what is happening? -
correct answer -they are pumping the blood out of the chamber by
contraction
what is the membrane inclosing the heart? - correct answer -it is
the pericardial sac
what are the pericardial leads? - correct answer -they are chest
leads
normal standard is? - correct answer -10 millimeters
what are leads? - correct answer -they are the colored wires that
are put on a patients limbs
what is AVL ? - correct answer -AVL is the difference in the hearts
voltage
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what is AVF? - correct answer -AVF is the difference in the hearts
voltage between the left leg and midpoint between left leg and
right arm
what does V1 through V6 record? - correct answer -V1 through
V6 records hearts voltage from the front to the back of the heart,
recorded from the central point of the heart
What is a sinus arrhythmia? - correct answer -it is changes in
breathing
what does the term systole mean? - correct answer -flatline
(death)
what is a heart murmur? - correct answer -a heart murmur is the
sound of a faulty action when the valves close
what is ischemia - correct answer -it is death to an area of the
heart