EKG national exam Questions with Detailed
Verified Answers
when the heart goes down to 40-60 beats per minute where is the impulse generated
? Ans: usually in the AV Node
which blood vessel leaves the heart and carries to all parts of the body? Ans: Aorta
when measuring the height of peaks in an EKG what number does each large square
represent? Ans: 5 millimeters by 5 millimeters
each small square in an EKG is? Ans: 0.04 seconds
how can you calculate each heart rate of an EKG rate? Ans: count the number of
complete complexes in a 3 or 6 interval and multiply by 20 or 10
if the ventricles are in the systole phase what is happening? Ans: they are pumping the
blood out of the chamber by contraction
what is the membrane inclosing the heart? Ans: it is the pericardial sac
what are the pericardial leads? Ans: they are chest leads
normal standard is? Ans: 10 millimeters
what are leads? Ans: they are the colored wires that are put on a patients limbs
what is AVL ? Ans: AVL is the difference in the hearts voltage
what is AVF? Ans: 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? Ans: 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? Ans: it is changes in breathing
, what does the term systole mean? Ans: flatline (death)
what is a heart murmur? Ans: a heart murmur is the sound of a faulty action when the
valves close
what is ischemia Ans: it is death to an area of the heart
when someone feels pain in the heart its because? Ans: when someone feels pain in
the heart it is because inadequate blood flow to the heart muscle
what does MI stand for? Ans: MI stands for a myocardial infarction
what is one of the major causes of heart failure? Ans: one of the major causes of heart
failure is untreated blood pressure
What is a myocardial infarction? Ans: a myocardial infarction is when the myocardial
tissue suffers death to an area because of insufficient heart blood flow
what is a major atherosclerosis Ans: it is the buildup of fat deposits on the walls of the
arteries leading to coronary arteries
who invented the electrocardiograph? Ans: Willem Einthoven and he is a Dutch
Physiologist
what is the inner layer of the heart called? Ans: endocardium
in what year was the first electrocardiogram introduced in the united states ? Ans:
1909
the heart is composed of four chambers that are ? Ans: hollow
what is the internal pacemaker of the heart ? Ans: SA Node
the lower pumping chambers of the heart are called? Ans: ventricles
what happens when the atria contracts? Ans: the ventricles fill
© Get it right 2025 Getaway - Stuvia US All rights reserved
Verified Answers
when the heart goes down to 40-60 beats per minute where is the impulse generated
? Ans: usually in the AV Node
which blood vessel leaves the heart and carries to all parts of the body? Ans: Aorta
when measuring the height of peaks in an EKG what number does each large square
represent? Ans: 5 millimeters by 5 millimeters
each small square in an EKG is? Ans: 0.04 seconds
how can you calculate each heart rate of an EKG rate? Ans: count the number of
complete complexes in a 3 or 6 interval and multiply by 20 or 10
if the ventricles are in the systole phase what is happening? Ans: they are pumping the
blood out of the chamber by contraction
what is the membrane inclosing the heart? Ans: it is the pericardial sac
what are the pericardial leads? Ans: they are chest leads
normal standard is? Ans: 10 millimeters
what are leads? Ans: they are the colored wires that are put on a patients limbs
what is AVL ? Ans: AVL is the difference in the hearts voltage
what is AVF? Ans: 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? Ans: 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? Ans: it is changes in breathing
, what does the term systole mean? Ans: flatline (death)
what is a heart murmur? Ans: a heart murmur is the sound of a faulty action when the
valves close
what is ischemia Ans: it is death to an area of the heart
when someone feels pain in the heart its because? Ans: when someone feels pain in
the heart it is because inadequate blood flow to the heart muscle
what does MI stand for? Ans: MI stands for a myocardial infarction
what is one of the major causes of heart failure? Ans: one of the major causes of heart
failure is untreated blood pressure
What is a myocardial infarction? Ans: a myocardial infarction is when the myocardial
tissue suffers death to an area because of insufficient heart blood flow
what is a major atherosclerosis Ans: it is the buildup of fat deposits on the walls of the
arteries leading to coronary arteries
who invented the electrocardiograph? Ans: Willem Einthoven and he is a Dutch
Physiologist
what is the inner layer of the heart called? Ans: endocardium
in what year was the first electrocardiogram introduced in the united states ? Ans:
1909
the heart is composed of four chambers that are ? Ans: hollow
what is the internal pacemaker of the heart ? Ans: SA Node
the lower pumping chambers of the heart are called? Ans: ventricles
what happens when the atria contracts? Ans: the ventricles fill
© Get it right 2025 Getaway - Stuvia US All rights reserved
