Certified Medical-Surgical Registered Nurse Practice Test

The correct answer is D. The transferrin level of 190 mg/dL indicates adequate nutrition. Transferrin is a protein that transports iron in the blood, and its level reflects iron storage levels. Adequate nutrition is important for wound healing, and having a normal transferrin level suggests good iron status, which is essential for tissue repair and healing. Options A, B, and C are incorrect: A. A prealbumin level of 12 mg/dL is low and indicates poor nutrition status. B. A serum albumin level of 2.5 g/dL is low, which indicates poor nutrition and inflammation. C. A total lymphocyte count of 1,900 mL is below the normal range, which may indicate poor nutrition and decreased immune function.