sorces for the electrical impulse that triggers cardiac contraction that lie outside the SA node
can valvular defects in the heart be detected with a 12 lead EKG
what is suggested by an inverted T wave on the EKG
what is the normal period of time for the PR interval
what parameter is measured on the vertical axis of the EKG paper
what structure paces a healthy heart
what structure serves as the backup pacemaker
Which wave represents the depolarization of the ventricles
which wave represents the repolarization of the ventricles
why is the electrical impulse temporarily delated at the AV node
so the ventricle can fill up
in what part of the cardiac conduction system does the electrical impulse travel most rapidly
what condition is often associated with right axis deviation
copd with cor pulmonale
wht is the normal maximum length of the pwave
no more than 2.5mm high 3mm lng
what is the widith of the normal QRS
what term is used to define the ability of certain cells to depolarize with out stimulation
what physical/clinical conditions are associated with tachycardia
hr>100 anxiety fever hypovolemia and hypoxemia, side effect of medications
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