Which of the following is a potential consequence if a blood transfusion is not managed properly?

A potential consequence of improper management during a blood transfusion is the risk of infection. Blood transfusions can introduce pathogens into the recipient's bloodstream if the blood products are not screened properly, stored adequately, or if aseptic techniques are not followed during the transfusion process. Infections like bacterial contamination of the blood product can lead to serious complications, including febrile non-hemolytic reactions or severe systemic infections, making vigilance in this area essential.

The other options do not directly relate to the consequences of improper blood transfusion management. Increased hemoglobin levels are generally expected after a successful transfusion when everything is managed properly. Dehydration and hypoglycemia are not typically associated with blood transfusion practices and are influenced by other factors unrelated to the transfusion process.