Final answer:
The adolescent has three risk factors for poor wound healing: B. impaired circulation, C. Impaired/suppressed immune system, and E. Poor wound care.
Step-by-step explanation:
The adolescent in question has several risk factors for poor wound healing. One of these risk factors is diabetes mellitus, as mentioned in the question. Diabetes can impair wound healing due to several mechanisms, including impaired circulation and impaired/suppressed immune system. Another risk factor for poor wound healing is malnutrition, which can delay the healing process.
However, the adolescent in this case is tolerating a regular diet, so malnutrition is not a risk factor in this particular situation. Finally, poor wound care can also contribute to poor wound healing. However, based on the information provided, the client's incision is approximated and free of redness, with scant serous drainage on the dressing, indicating that the wound care is appropriate.
Therefore, the correct answers would be
B. Impaired circulation, C. Impaired/suppressed immune system, and E. Poor wound care.