This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: Endocrinology and breast, Subject name: Surgery
Chvostek's and Trousseau's signs are related to 
Select and explain. 
A. Hypocalemia, B. Hypercalcemia, C. Hypokalemia, D. Hyperkalemia
A: Hypocalemia
Answer: A: Hypocalemia 
Explanation: Chvostek's and Trousseau's signs are related to hypocalcemia.Chvostek's sign refers to contraction of the ipsilateral facial muscles on percussion of the facial nerve below the zygoma. Trousseau's sign refers to the development of carpopedal spasm secondary to occlusion of the arm (usually with a blood pressure cuff).Ref: Bailey and Love 27e pg: 831