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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
where does the inferior vena cava get its blood ? - ANSWER: -from below the
diaphragm
the valves of the heart are made up of ? - ANSWER: endocardium
who invented the electrocardiograph ? - ANSWER: -willem einthoven, a dutch
physiologist
The heart is a dual action pump - ANSWER: -true
the left ventricle is - ANSWER: -the hardest working chamber