A nurse is providing discharge instructions to the caregivers of a child who is postoperative following a tonsillectomy. Which of the following statements should the nurse include in the teaching?

Choice A reason: Increased swallowing in a child after a tonsillectomy can indicate bleeding at the surgical site. Because children may not be able to verbalize bleeding, frequent swallowing is a subtle but critical sign. This requires immediate medical attention, making this the correct answer. Choice B reason: A warm-mist vaporizer is not recommended because it increases humidity and warmth, which can promote bacterial growth and increase infection risk. Cool-mist vaporizers are safer and more effective for soothing the throat and reducing discomfort. Therefore, this option is incorrect. Choice C reason: Blowing the nose frequently can increase pressure in the oropharynx and disturb the surgical site, potentially leading to bleeding. This option is unsafe and incorrect. Choice D reason: Using a straw after tonsillectomy is contraindicated because the suction action can dislodge clots and increase the risk of bleeding. Smoothies can be offered, but they should be given with a spoon or cup, not a straw. This option is incorrect.