Certified Medical-Surgical Registered Nurse Practice Exam

What laboratory value indicates adequate nutrition for a patient with an abdominal wound healing by secondary intention?

1. Serum albumin level of 2.5 g/dL

2. Prealbumin level of 12 mg/dL

3. Transferrin level of 190 mg/dL

4. Total lymphocyte count of 1,900 mL

The correct answer is: Total lymphocyte count of 1,900 mL

The total lymphocyte count of 1,900 mL suggests an adequate immune response and is associated with good nutritional status. In patients with wounds, especially those healing by secondary intention, adequate nutrition plays a crucial role in promoting healing and preventing infection. A lymphocyte count within the normal range (typically around 1,500 to 4,000 cells/mL) indicates that the patient's immune system is functioning well, which is essential for effective wound healing. The other values provided do not reflect adequate nutritional status. For instance, a serum albumin level of 2.5 g/dL is indicative of nutritional deficiency and poor protein status, which can negatively affect wound healing. Similarly, a prealbumin level of 12 mg/dL suggests inadequate protein intake, as optimal levels for nutrition are generally higher, indicating potential issues with healing. While transferrin is a transport protein for iron and reflects nutritional iron status, a level of 190 mg/dL may not be fully adequate for optimal healing if overall nutritional status is compromised. Therefore, the total lymphocyte count being at a healthful level directly supports the notion of adequate nutrition, aiding the healing process of the abdominal wound.