EKG第 70 / 100 题
Where is lead V2 placed during a 12-lead EKG?
a.Fourth intercostal space at the right sternal border
b.Fourth intercostal space at the left sternal border
c.Fifth intercostal space at the midclavicular line
d.Fifth intercostal space at the midaxillary line
解析
Lead V2 is placed in the fourth intercostal space at the left sternal border, directly across from V1. V1 and V2 straddle the sternum in the same intercostal space. Correct placement ensures reliable recording of the heart's electrical activity.
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