EKG CERTIFICATION NATIONAL
COMPREHENSIVE EXAM 2026 QUESTIONS
WITH ANSWERS GRADED A+
◉ which blood vessel leaves the heart and carries to all parts of the
body? Answer: Aorta
◉ when measuring the height of peaks in an EKG what number does
each large square represent? Answer: 5 millimeters by 5 millimeters
◉ each small square in an EKG is? Answer: 0.04 seconds
◉ how can you calculate each heart rate of an EKG rate? Answer: 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? Answer:
they are pumping the blood out of the chamber by contraction
◉ what is the membrane inclosing the heart? Answer: it is the
pericardial sac
,◉ what are the pericardial leads? Answer: they are chest leads
◉ normal standard is? Answer: 10 millimeters
◉ what are leads? Answer: they are the colored wires that are put on a
patients limbs
◉ what is AVL ? Answer: AVL is the difference in the hearts voltage
◉ what is AVF? 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? 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? Answer: it is changes in breathing
◉ what does the term systole mean? Answer: flatline (death)
◉ what is a heart murmur? Answer: a heart murmur is the sound of a
faulty action when the valves close
, ◉ what is ischemia. Answer: it is death to an area of the heart
◉ when someone feels pain in the heart its because? Answer: when
someone feels pain in the heart it is because inadequate blood flow to the
heart muscle
◉ what does MI stand for? Answer: MI stands for a myocardial
infarction
◉ what is one of the major causes of heart failure? Answer: one of the
major causes of heart failure is untreated blood pressure
◉ What is a myocardial infarction? Answer: a myocardial infarction is
when the myocardial tissue suffers death to an area because of
insufficient heart blood flow
◉ what is a major atherosclerosis. Answer: it is the buildup of fat
deposits on the walls of the arteries leading to coronary arteries
◉ who invented the electrocardiograph? Answer: Willem Einthoven and
he is a Dutch Physiologist
◉ what is the inner layer of the heart called? Answer: endocardium
COMPREHENSIVE EXAM 2026 QUESTIONS
WITH ANSWERS GRADED A+
◉ which blood vessel leaves the heart and carries to all parts of the
body? Answer: Aorta
◉ when measuring the height of peaks in an EKG what number does
each large square represent? Answer: 5 millimeters by 5 millimeters
◉ each small square in an EKG is? Answer: 0.04 seconds
◉ how can you calculate each heart rate of an EKG rate? Answer: 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? Answer:
they are pumping the blood out of the chamber by contraction
◉ what is the membrane inclosing the heart? Answer: it is the
pericardial sac
,◉ what are the pericardial leads? Answer: they are chest leads
◉ normal standard is? Answer: 10 millimeters
◉ what are leads? Answer: they are the colored wires that are put on a
patients limbs
◉ what is AVL ? Answer: AVL is the difference in the hearts voltage
◉ what is AVF? 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? 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? Answer: it is changes in breathing
◉ what does the term systole mean? Answer: flatline (death)
◉ what is a heart murmur? Answer: a heart murmur is the sound of a
faulty action when the valves close
, ◉ what is ischemia. Answer: it is death to an area of the heart
◉ when someone feels pain in the heart its because? Answer: when
someone feels pain in the heart it is because inadequate blood flow to the
heart muscle
◉ what does MI stand for? Answer: MI stands for a myocardial
infarction
◉ what is one of the major causes of heart failure? Answer: one of the
major causes of heart failure is untreated blood pressure
◉ What is a myocardial infarction? Answer: a myocardial infarction is
when the myocardial tissue suffers death to an area because of
insufficient heart blood flow
◉ what is a major atherosclerosis. Answer: it is the buildup of fat
deposits on the walls of the arteries leading to coronary arteries
◉ who invented the electrocardiograph? Answer: Willem Einthoven and
he is a Dutch Physiologist
◉ what is the inner layer of the heart called? Answer: endocardium
