A nurse assesses a client who is recovering from a subtotal thyroidectomy. On the second postoperative day, the client states, "I feel numbness and tingling around my mouth." What action should the nurse take?

Choice A rationale: Offering mouth care would be an inappropriate action as it does not address the underlying cause of the client's symptoms. Numbness and tingling around the mouth are classic signs of hypocalcemia, a potential complication of thyroidectomy due to the accidental removal or damage of the parathyroid glands. Mouth care provides no therapeutic benefit for this condition. Choice B rationale: Loosening the dressing is incorrect as it would not alleviate the symptoms of hypocalcemia. The sensation of numbness and tingling is a systemic issue caused by low serum calcium levels, not a localized problem related to the surgical incision or dressing. Loosening the dressing would be appropriate for signs of a hematoma or swelling. Choice C rationale: Assessing for Chvostek's sign is the correct action. Numbness and tingling (paresthesia) around the mouth are early indicators of hypocalcemia, which can occur after a thyroidectomy. Chvostek's sign is a clinical manifestation of latent tetany caused by hypocalcemia, elicited by tapping the facial nerve anterior to the ear, which produces a facial muscle twitch on the same side. Choice D rationale: While assessing the client's mental status is part of a comprehensive neurological assessment, asking for their name and date of birth is not the most immediate or specific action to address the reported symptoms. The priority is to confirm the suspicion of hypocalcemia, which can progress to more severe complications like tetany and laryngospasm.