EKG Acquisition第 39 / 100 题
After placing V1, V2, and V4, where should the technician place V3?
a.Midway between V2 and V4
b.Midway between V1 and V2
c.Directly below V2 in the fifth intercostal space
d.At the left anterior axillary line level with V4
解析
V3 is placed on a straight line halfway between V2 and V4, which is why V4 must be positioned first. Placing it between V1 and V2 would put it over the sternum. Dropping it straight down from V2 ignores the diagonal path of the chest wall, and the left anterior axillary line position is V5.
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