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Intro into 12-Lead

Introduction into 12-lead EKGs

QuestionAnswer
Leads are... views of the heart
Electrodes are... the stickers placed on the chest.
A 12-lead EKG gives us ______ views of the heart with only ______ electrodes. 12; 10
Positive electrodes are the... cameras.
Negative electrodes are the... subject.
______ electrodes always face the ______ electrodes. positive to negative
Which of leads are considered hexaxial? Lead I, lead II, lead III, aVR, aVL, aVF
Are leads I - III are unipolar or bipolar? bipolar
Describe Lead 1 and its view. + leg arm, - right arm; left lateral
Describe Lead II and its view. + left leg, - right arm; inferior
Describe Lead III and its view. + left leg, - left arm; inferior
Are aVR, aVL, and aVF are unipolar or bipolar? unipolar
What is the name of the "negative electrode" in unipolar leads? central terminal
What is the central terminal in unipolar leads? heart
Describe aVR and its view. + right arm, - heart; right atrium
Describe aVL and its view. + left arm, - heart; left lateral
Describe aVF and its view. + left leg, -heart; inferior
Which of leads are considered precordial? V1, V2, V3, V4, V5, V6
Precordial leads look at the _______ around to the ___________________. front, left side
How important is it to place the precordial leads in the correct spot? VERY! Must be in the exact spot unless skin tissue is in the way. Place beneath the tissue.
What two landmarks are you "supposed to" look for to find the intercostal spaces? jugular notch and angle of Louis
What is the angle of Louis? angle between the manubrium (top of the sternum) to the body of the sternum
Where is V1 placed? right side of sternum; 4th intercostal space
Where is V2 placed? left side of sternum; 4th intercostal space
Where is V3 placed? between V2 and V4
Where is V4 placed? left midclavicular line (left sagittal line) in the 5th intercostal space
Where is V5 placed? left anterior axillary line in the 5th intercostal space
Where is V6 placed? left midaxillary line in the 5th intercostal space
What does V1 view? septal
What does V2 view? septal
What does V3 view? anterior
What does V4 view? anterior
What does V5 view? left lateral
What does V6 view? left lateral
Which leads are commonly used for rhythm strips? Lead II or V1
Created by: MrsReynolds
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