题目：
The nurse is caring for a client who is on ritodrine therapy to halt premature labor. What condition indicates an adverse reaction to ritodrine therapy
A. Hypoglycemia.
B. Crackles.
C. Bradycardia.
D. Hyperkalemi
答案：
参考答案：B
解析：Use of ritodrine can lead to pulmonary edema. Therefore, the nurse should assess for crackles and dyspnea. Blood glucose levels may temporarily rise, not fall, with ritodrine. Ritodrine may cause tachycardia, not bradycardia. Ritodrine may also cause hypokalemia, not hyperkalemia.
