The nurse reviews the record after a total thyroidectomy. Which findings require immediate follow-up? Highlight the findings associated with postoperative hypocalcemia.

Nurses' Notes 1830: The client is six hours postoperative following a total thyroidectomy. The client reports mild throat irritation that has improved after ice chips. During the assessment, the client reports new tingling around the lips and corners of the mouth. A small area of bruising below the incision is unchanged from the previous outline. The client states both fingertips have become numb during the past 1 hour. The voice is mildly hoarse but has improved steadily since extubation. When the blood-pressure cuff inflates, the client's hand tightens into a painful carpopedal spasm. The neck remains soft without rapidly increasing swelling or difficulty swallowing. Laboratory results show the serum calcium level has decreased to 7.1 mg/dL. The surgical drain contains 25 mL of thin serosanguineous fluid since arrival. The dressing is dry and intact, and the trachea remains midline. The client is awake and follows commands. The nurse keeps emergency airway equipment available and promptly contacts the surgical team about the neuromuscular findings and calcium result.