EKG quiz 1 google doc questions
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13 Terms
the correct names for the waves of an EKG are
P, QRS, T
most of the information on the EKG represents the electrical activity of the
mycocardium
when a positive wave of depolarization in the myocytes flows toward a positive electrode, there is a ___ deflection recorded on the EKG
positive, upward
the SA node is located
in the upper-posterior wall of the right atrium
the heart's dominate pacemaker during normal electrical activity is the
SA node
the cardiac skeleton that covers the AV valves
electrically insulate the ventricles from the atria
the ST segment and T wave represent
ventricular repolarization
the heart's dominate pacemaker is the __ and its normal rate is __
SA node, 60 to 100
which of the following has an intrinsic rate of 15 to 40 bpm
purkinje fibers
3 multiple choice options
which of the following is true about atrial systole/atrial kick
additional 10 to 40% of blood enters ventricles
3 multiple choice options
the ST segment represents __ and should be __
repolarization, isoelectric/flat
a biphasic wave is created when
a depolarizing wave moving perpendicularly to a positive electrode
the stickers placed on the skin that connect to the wires of the EKG machine are called
electrodes
Note 
Flashcards (32)