After a tonsillectomy, frequent swallowing may indicate which of the following complications?

A. Bleeding is the most concerning complication after a tonsillectomy. Frequent swallowing, especially when not associated with eating or drinking, may indicate that the child is swallowing blood trickling down the throat. This can be life-threatening if not identified promptly. Nurses should closely monitor for this subtle but critical sign. B. Dehydration may occur after tonsillectomy if the child avoids drinking due to pain, but it presents with dry mucous membranes, decreased urine output, or lethargy—not frequent swallowing. C. Allergic reaction to medications may cause rash, swelling, or respiratory distress, but it does not typically present as frequent swallowing. D. Infection may occur several days postoperatively with fever, pain, and foul odor, but frequent swallowing is not the hallmark sign.