较大的肌瘤内部出现边界模糊的无回声区，应考虑（）。

A.玻璃样变

B.囊性变

C.红色变

D.脂肪变

E.肉瘤变

A client with thyroid cancer undergoes a thyroidectomy. After surgery, the client develops peripheral numbness and tingling and muscle twitching and spasms. The nurse should expect to administer（）

A. thyroid supplements.

B. antispasmodics.

C. barbiturates.

D. IV calcium.