题目：
The nurse teaches the mother of an infant diagnosed with congenital hypothyroidism about daily oral levothyroxine sodium (Synthroid) therapy. Which of the following signs and symptoms would indicate an overdose
A. Anorexia.
B. Constipation.
C. Sweating.
D. Sleepiness.
答案：
参考答案：C
解析：Sweating, insomnia, rapid pulse, dyspnea, irritability, fever, and weight loss are all signs indicating levothyroxine (Synthroid) overdose.
