After a right below-knee amputation, which complication is a diabetic client at highest risk for?

The highest risk complication for a diabetic client after a right below-knee amputation is infection of the stump. Diabetes can impair the body's immune response and slow healing due to reduced blood flow and nerve function. This means that infections can develop more easily in the surgical area, as the body's ability to fight off pathogens is compromised.

Furthermore, the risk of developing infections is exacerbated by the presence of diabetes, as the elevated blood glucose levels can promote bacterial growth. Infections can lead to serious implications, including delayed healing or even further complications that may necessitate additional surgeries.

While separation of the wound edges, fracture of the remaining limb, and delayed healing of the incision are concerns related to postoperative complications, the immediate and significant risk of infection stands out, especially given the context of the client's pre-existing diabetic condition.