when the heart goes down to 40-60 beats per minute where is the impulse generated ?
-ANSWER-usually in the AV Node
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
in what year was the first electrocardiogram introduced in the united states ? -
ANSWER-1909
the heart is composed of four chambers that are ? -ANSWER-hollow
what is the internal pacemaker of the heart ? -ANSWER-SA Node
the lower pumping chambers of the heart are called? -ANSWER-ventricles
what happens when the atria contracts? -ANSWER-the ventricles fill
the upper pumping chambers of the heart are called? -ANSWER-the atria
where is the AV bundle located? -ANSWER-it is located at the top of the septum
where is the heart located? -ANSWER-it is located in the center of the chest (more
towards the left)
what is the P wave -ANSWER-it is the atrial contraction
what should be done the the patient before placing the electrodes? -ANSWER-wipe the
skin with alcohol, remove clothing above the waist, remove all jewelry (all of the above)
what information should be coded into the ECG machine? -ANSWER-patients name,
patients birth date and medication (all of the above)
heart block are caused by a blockage in the conduction system at which point? -
ANSWER-AV node
When does the U wave occur? -ANSWER-repolarization of the purkinje fibers
the QRS complex occurs when the? -ANSWER-when the ventricles contract
what is another name for a heart rate over 150? -ANSWER-tachycardia
what is a lead? -ANSWER-the colored wire that are put on the patient's limbs
what is the normal standard for calibration of an EKG machine? -ANSWER-10mm/sec
another name for the resting phase on an EKG is ? -ANSWER-the baseline
the term electrocardiograph is ? -ANSWER-the instrument used for recording the heart's
activity
what does the P wave show -ANSWER-the atrial contraction
what is endocarditis? -ANSWER-inflammation of the endocardium
what position should the patient be when obtaining an EKG? -ANSWER-supine
what is a lead(s) -ANSWER-a device that collects or conducts electrical currents
the function of the heart is ? -ANSWER-to pump sufficient amount of blood to all the
cells in the body
the heart is classified as a ? -ANSWER-a hollow muscular organ
as blood returns to the heart from the body, it enters ? -ANSWER-the right atrium
-ANSWER-usually in the AV Node
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
in what year was the first electrocardiogram introduced in the united states ? -
ANSWER-1909
the heart is composed of four chambers that are ? -ANSWER-hollow
what is the internal pacemaker of the heart ? -ANSWER-SA Node
the lower pumping chambers of the heart are called? -ANSWER-ventricles
what happens when the atria contracts? -ANSWER-the ventricles fill
the upper pumping chambers of the heart are called? -ANSWER-the atria
where is the AV bundle located? -ANSWER-it is located at the top of the septum
where is the heart located? -ANSWER-it is located in the center of the chest (more
towards the left)
what is the P wave -ANSWER-it is the atrial contraction
what should be done the the patient before placing the electrodes? -ANSWER-wipe the
skin with alcohol, remove clothing above the waist, remove all jewelry (all of the above)
what information should be coded into the ECG machine? -ANSWER-patients name,
patients birth date and medication (all of the above)
heart block are caused by a blockage in the conduction system at which point? -
ANSWER-AV node
When does the U wave occur? -ANSWER-repolarization of the purkinje fibers
the QRS complex occurs when the? -ANSWER-when the ventricles contract
what is another name for a heart rate over 150? -ANSWER-tachycardia
what is a lead? -ANSWER-the colored wire that are put on the patient's limbs
what is the normal standard for calibration of an EKG machine? -ANSWER-10mm/sec
another name for the resting phase on an EKG is ? -ANSWER-the baseline
the term electrocardiograph is ? -ANSWER-the instrument used for recording the heart's
activity
what does the P wave show -ANSWER-the atrial contraction
what is endocarditis? -ANSWER-inflammation of the endocardium
what position should the patient be when obtaining an EKG? -ANSWER-supine
what is a lead(s) -ANSWER-a device that collects or conducts electrical currents
the function of the heart is ? -ANSWER-to pump sufficient amount of blood to all the
cells in the body
the heart is classified as a ? -ANSWER-a hollow muscular organ
as blood returns to the heart from the body, it enters ? -ANSWER-the right atrium
