Electrode Placement

Leads I, II, and III record impulses that travel which direction?

• Negative to positive
• Positive to negative
• Tword Wilson central terminal
• Away from Wilson central terminal

Impulses between the left and right arm are recorded in which lead?

• Lead I
• Lead II
• Lead III
• aVF

Impulses between the right arm and left leg are recorded in which lead?

• Lead II
• Lead I
• Lead III
• aVF

Impulses between the left arm and left leg are recorded in which lead?

• Lead III
• Lead II
• Lead I
• aVF

The left leg and right arm assist with which augmented lead?

• aVL
• aVR
• aVF
• aVT

The left leg and left arm assist with which augmented lead?

• aVR
• aVL
• aVF
• aVT

The left and right arm assist with which augmented lead?

• aVF
• aVR
• aVL
• aVT

When preforming a 12-lead not place electrodes over what?

• Bone
• Muscle
• Scar tissue
• Sensitive areas

First step with placing precordial leads is to locate what?

• angle of Louis (sternal angle)
• 4th ICS
• 5th ICS
• Midaxillary line

Which intercostal space is found at the angle of Louis?

• 2nd
• 4th
• 5th
• 1st