Which physical examination sign is classic for hypocalcemia after thyroid surgery?

Which physical examination sign is classic for hypocalcemia after thyroid surgery?

• A. Chvostek's sign
• B. Trousseau's sign
• C. Bragard sign
• D. Homan sign

Answer: (A)

Low calcium after thyroid surgery causes increased neuromuscular irritability, so the most recognizable bedside sign is Chvostek's sign: tapping the facial nerve just in front of the ear triggers twitching of the facial muscles. This reflex is a classic indicator of hypocalcemia in the post-thyroidectomy setting. Trousseau's sign, a carpopedal spasm with a blood pressure cuff, also reflects hypocalcemia but the facial tapping sign is the quintessential exam finding here. Signs like Bragard or Homan are unrelated to calcium status.

Low calcium after thyroid surgery causes increased neuromuscular irritability, so the most recognizable bedside sign is Chvostek's sign: tapping the facial nerve just in front of the ear triggers twitching of the facial muscles. This reflex is a classic indicator of hypocalcemia in the post-thyroidectomy setting. Trousseau's sign, a carpopedal spasm with a blood pressure cuff, also reflects hypocalcemia but the facial tapping sign is the quintessential exam finding here. Signs like Bragard or Homan are unrelated to calcium status.