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Questions and Answers
What are precordial leads?
What are precordial leads?
- Leads placed on the legs
- Leads placed on the arms
- Leads placed on the anterior chest (correct)
- Leads placed on the back
What is the definition of chest leads?
What is the definition of chest leads?
V1-V6
Where is the V1 lead placed?
Where is the V1 lead placed?
Fourth intercostal space, right sternal border
Where is the V2 lead placed?
Where is the V2 lead placed?
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Where is the V3 lead located?
Where is the V3 lead located?
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Where is the V4 lead placed?
Where is the V4 lead placed?
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Where is the V5 lead placed?
Where is the V5 lead placed?
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Where is the V6 lead located?
Where is the V6 lead located?
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What is the RA lead (white)?
What is the RA lead (white)?
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What is the LA lead (black)?
What is the LA lead (black)?
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What is the RL lead (green)?
What is the RL lead (green)?
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What is the LL lead (red)?
What is the LL lead (red)?
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Study Notes
Precordial Leads Overview
- Precordial leads consist of six EKG leads positioned on the anterior chest.
- These leads primarily capture electrical activity from the heart's ventricles and the anterior wall.
Chest Leads Designation
- Precordial leads are also referred to as chest leads, identified as V1 through V6.
Lead Positions
- V1: Located in the fourth intercostal space at the right sternal border.
- V2: Positioned in the fourth intercostal space at the left sternal border.
- V3: Placed equidistant between leads V2 and V4.
- V4: Found in the fifth intercostal space along the left midclavicular line.
- V5: Located in the fifth intercostal space at the anterior axillary line.
- V6: Positioned in the fifth intercostal space at the left mid-axillary line.
General EKG Lead Identification
- RA Lead (White): The electrode placed on the patient's right arm.
- LA Lead (Black): The electrode placed on the patient's left arm.
- RL Lead (Green): The electrode positioned on the patient's right leg.
- LL Lead (Red): The electrode placed on the patient's left leg.
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