The following are multiple choice questions (with answers) about medical knowledge.   **Question:** A 55-year-old woman with papillary thyroid carcinoma underwent total thyroidectomy. She has no significant medical history. On postoperative day 1, she develops perioral numbness and a tingling sensation, along with paresthesia of the hands and feet. The physical examination reveals that she is anxious and confused. Her pulse is 90/min, the blood pressure is 110/80 mm Hg, the respirations are 22/min, and the temperature is 36.7°C (98.0°F). Latent tetany (carpal spasm) is evident in the right arm. This is observed when the sphygmomanometer cuff pressure is raised above the systolic blood pressure and held for 3 minutes. The laboratory test results are as follows: Serum calcium 6.7 mg/dL Serum sodium 143 mEq/L Serum potassium 4.4 mEq/L Serum creatinine 0.9 mg/dL Blood urea 16 mg/dL Serum magnesium 1.1 mEq/L What is the most likely cause of this condition?   (A) Inadvertent surgical removal of parathyroid glands   (B) DiGeorge syndrome   (C) Chronic hypomagnesemia   (D) Hungry bone syndrome
['(A) Inadvertent surgical removal of parathyroid glands <> answer', 'The following are multiple choice questions (with answers) about medical knowledge. <> instruction', '(A) Inadvertent surgical removal of parathyroid glands \n (B) DiGeorge syndrome \n (C) Chronic hypomagnesemia \n (D) Hungry bone syndrome <> possible answers', '  A 55-year-old woman with papillary thyroid carcinoma underwent total thyroidectomy. She has no significant medical history. On postoperative day 1, she develops perioral numbness and a tingling sensation, along with paresthesia of the hands and feet. The physical examination reveals that she is anxious and confused. Her pulse is 90/min, the blood pressure is 110/80 mm Hg, the respirations are 22/min, and the temperature is 36.7°C (98.0°F). Latent tetany (carpal spasm) is evident in the right arm. This is observed when the sphygmomanometer cuff pressure is raised above the systolic blood pressure and held for 3 minutes. The laboratory test results are as follows:\nSerum calcium 6.7 mg/dL\nSerum sodium 143 mEq/L\nSerum potassium 4.4 mEq/L\nSerum creatinine 0.9 mg/dL\nBlood urea 16 mg/dL\nSerum magnesium 1.1 mEq/L\nWhat is the most likely cause of this condition? <> context@']