EKGCâu 71 / 100
Lead V4 of a 12-lead EKG is correctly positioned at:
a.The fourth intercostal space at the right sternal border
b.The fourth intercostal space at the left sternal border
c.The fifth intercostal space at the left midclavicular line
d.The left midaxillary line level with V4
Giải thích
Lead V4 is placed in the fifth intercostal space at the left midclavicular line. V4 is generally positioned before V3, and V3 is placed midway between V2 and V4. Correct V4 placement anchors the horizontal plane of the remaining chest leads.
Luyện miễn phí toàn bộ 100 câu hỏi — không cần đăng ký.
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