A nurse is contributing a nutritional plan of care for a child. Which of the following diagnostic tests should the nurse recommend for the child?

A. Cardiac enzymes. Cardiac enzyme tests are used to assess heart damage, such as in myocardial infarction, and are not typically relevant in evaluating a child's nutritional status. B. Complete blood count. A CBC is a key diagnostic test for assessing nutritional status, as it can reveal anemia (low hemoglobin and hematocrit), infection (elevated white blood cells), and overall health status. It helps identify deficiencies in iron, folate, and vitamin B12, which are common nutritional concerns in children. C. Blood coagulation tests. Coagulation tests (e.g., PT, INR, aPTT) are used to assess blood clotting disorders and monitor anticoagulant therapy, but they are not standard tests for nutritional assessment unless there is suspicion of a vitamin K deficiency. D. Arterial blood gases. ABG tests assess respiratory function and acid-base balance, which are more relevant in critically ill patients. They are not routinely used to evaluate a child's nutritional status.