Lumbar Puncture Landmark
Apr 24, 2015
Draw a line between the upper edges of the iliac ridges on both sides and intersect the midline passing through the L4 spinous process. Insert the needle in the gap between L3 and L4 or L4 and L5 because these points are located below the terminal segment of the spinal cord. Physicians should find out the landmarks before disinfecting the skin and injecting local anesthetics, because these operations may obscure the landmarks. Use the skin marker to mark the correct position.
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