[单选题]

某女士,38岁,患滴虫性阴道炎,准备用自助冲洗器灌洗阴道,护士应告知她冲洗的乳酸溶液浓度为

A.0.5%

B.1%

C.2%

D.3%

E.4%

参考答案与解析: