Which isn't the correct location for placement of an IO needle in a pediatric patient?

The mid-shaft of the femur is not an appropriate location for the placement of an intraosseous (IO) needle in a pediatric patient. The best sites for IO insertion involve areas where the bone is accessible and there is a high likelihood of successfully penetrating the medullary cavity for efficient fluid and medication delivery.

The proximal tibia is a common site because it is easily identifiable in children and offers a safe approach to the medullary space. The distal tibia can also be used as it is anatomically accessible and provides a reliable route for IO access. Similarly, the proximal humerus is another recognized site due to its relative accessibility and the vascular structure surrounding it.

In contrast, the mid-shaft of the femur is not used for IO access because this location lacks the shallow bone surface necessary for safe and effective needle insertion. It is also anatomically more challenging, as the depth and the potential for surrounding structures may pose a greater risk during insertion. Hence, the use of the mid-shaft of the femur is not supported in pediatric IO procedures.