12-lead Acquisition

Question 1

What is tue correct frequency for acquiring a 12-lead?

Answer 1

0.05-40Hz

Question 2

How do you find the accurate placement site of V1?

Answer 2

• Locate supra-sternal notch
• Run a finger down the manubrium until the ridge of meets the body of the sternum (Angle of Louis)
• The 2nd rib lies immediately adjacent to the Angle of Louis), find the intercostal space
• Move down two more intercostal spaces
• Place electrode immediately to R) of sternum

Question 3

Order the placement of chest leads

Answer 3

1st - V1, 4th intercostal space, R) of sternum
2nd - V2, “” L) of sternum
3rd - V4, 5th intercostal space mid-clav line
4th - V6, 5th intercostal space, mid-axillary
5th - V3, Midway V2-V4
6th - V5, Midway V4-V6