Leads Review
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42 Terms
V1 is located where?
Right side of sternum, 4th intercostal space
What are the bipolar leads?
Leads I, II, and III
V3 is located where?
Between V2 and V4 on the anterior surface of the heart
Which two V Leads views the anterior wall?
V3 and V4
Lead I is when...
Left arm is positive and right arm is negative
Which two bipolar leads views the inferior surface?
Leads II and III
V4 is located where?
Left side midclavicular, 5th intercostal space
Lead III is when...
Left leg is positive and left arm is negative
Which two V leads views the lateral wall?
V5 and V6
V6 is located where?
Left side midaxillary, 5th intercostal space
Which bipolar lead views the lateral wall?
Lead I
Lead aVR...
Views the heart from the right shoulder BUT it doesn't see the heart
V5 is located where?
Left anterior axillary
Remember the V Leads are in which plane?
The horizontal plane
Lead aVF...
Views the heart from the left foot SO that means it sees the inferior surface
V2 is located where?
Left side of sternum, fourth intercostal space
Which Leads are in the frontal plane?
Leads I, II, III, aVR, aVL, aVF
Lead aVL...
views the heart from the left arm SO that means it sees the lateral wall
Bipolar leads...
Consists of a positive and negative electrode
If there's something wrong with Lead I, what does it mean?
This means there's something wrong with the lateral wall
If there's something wrong with both Leads II & III, what does it mean?
This means there's something wrong with the inferior surface
What is a lead?
A lead is a record(tracing)of electrical activity
Which two V Leads views the septal wall?
V1 & V2
FILL: Right is ALWAYS ________
Negative
FILL: Left is ALWAYS ________
Positive
Why does the aVR in typically see nothing?
Vessels in the way
FILL: Lead I: _____ arm (-) and ____ arm (+); views the lateral of the heart
Right, left
FILL: Lead II: _____ arm (-) and ____ leg (+); views the inferior surface of the heart
Right, left
Where is V8 located?
Tip of the scapula, halfway between V7 and V9
What are your augmented leads?
aVR, aVL, aVF
What does “a” mean?
Augmented
What does “V” mean?
Voltage
What does “R” mean?
Right arm
What does “L” mean?
Left
What does “F” mean?
Foot (usually left leg)
What is a lead?
Records of electrical activity, showing voltage differences between positive and negative electrodes.
TRUE or FALSE: Right chest leads are symmetrical to standard leads
TRUE; ex. (V6 would be standard and V6R would be right side lead)
Where is lead V7 placed?
Posterior axillary line
Where is lead V9 placed?
Over the left border of the spine
What are the posterior chest leads?
V7, V8, V9
How many electrodes are there?
10
What is the base?
Right foot