EKG NATIONAL EXAM QUESTIONS
AND VERIFIED ANSWERS WELL
GRADED (NEW 2025/2026 UPDATE)
QUESTIONS WITH VERIFIED
ANSWERS 100% CORRECT /A+ GRADE
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
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
when someone feels pain in the heart its because? -
CORRECT ANSWER-when someone feels pain in the heart it is
because inadequate blood flow to the heart muscle
what does MI stand for? - CORRECT ANSWER-MI stands for a
myocardial infarction
what is one of the major causes of heart failure? - CORRECT
ANSWER-one of the major causes of heart failure is
untreated blood pressure
, What is a myocardial infarction? - CORRECT 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 - CORRECT ANSWER-it is the
buildup of fat deposits on the walls of the arteries
leading to coronary arteries
who invented the electrocardiograph? - CORRECT ANSWER-
Willem Einthoven and he is a Dutch Physiologist
what is the inner layer of the heart called? - CORRECT ANSWER-
endocardium
in what year was the first electrocardiogram introduced
in the united states ? - CORRECT ANSWER-1909
the heart is composed of four chambers that are ? -
CORRECT ANSWER-hollow
what is the internal pacemaker of the heart ? - CORRECT
ANSWER-SA Node
the lower pumping chambers of the heart are called? -
CORRECT ANSWER-ventricles
AND VERIFIED ANSWERS WELL
GRADED (NEW 2025/2026 UPDATE)
QUESTIONS WITH VERIFIED
ANSWERS 100% CORRECT /A+ GRADE
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
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
when someone feels pain in the heart its because? -
CORRECT ANSWER-when someone feels pain in the heart it is
because inadequate blood flow to the heart muscle
what does MI stand for? - CORRECT ANSWER-MI stands for a
myocardial infarction
what is one of the major causes of heart failure? - CORRECT
ANSWER-one of the major causes of heart failure is
untreated blood pressure
, What is a myocardial infarction? - CORRECT 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 - CORRECT ANSWER-it is the
buildup of fat deposits on the walls of the arteries
leading to coronary arteries
who invented the electrocardiograph? - CORRECT ANSWER-
Willem Einthoven and he is a Dutch Physiologist
what is the inner layer of the heart called? - CORRECT ANSWER-
endocardium
in what year was the first electrocardiogram introduced
in the united states ? - CORRECT ANSWER-1909
the heart is composed of four chambers that are ? -
CORRECT ANSWER-hollow
what is the internal pacemaker of the heart ? - CORRECT
ANSWER-SA Node
the lower pumping chambers of the heart are called? -
CORRECT ANSWER-ventricles
