A nurse is assessing a preschool-age child who is in the immediate postoperative period following a tonsillectomy. Which of the following assessment findings is the priority?

The correct answer is C: The child swallows frequently. This is the priority assessment finding because it could indicate postoperative bleeding, a serious complication after a tonsillectomy. Swallowing frequently may suggest blood pooling in the throat, leading to potential airway compromise. Immediate intervention is required to prevent further complications. Refusing clear liquids (A) and crying often (B) are common behaviors in the postoperative period and do not necessarily indicate a critical issue. Throat pain increasing (D) is expected after a tonsillectomy and can be managed with pain medication.