A nurse is caring for a school-age child who weighs 20 kg (44 lb) and is postoperative with chest tubes in place. Which of the following findings should the nurse report to the provider?

A. This is within the normal range for a school-age child and does not require immediate reporting. B. This is a significant amount of drainage and should be reported to the provider as it may indicate ongoing bleeding or fluid accumulation. C. Serous drainage is expected in the early postoperative period and does not require immediate reporting. D. Fluctuation in the water-sealed chamber is normal and indicates that the chest tube system is functioning correctly.