腹泻脱水患儿补液后排尿，此时输液瓶中尚有不含钾液体300ml，此液体中最多可加入10%氯化钾

A.6ml
B.9ml
C.10ml
D.12ml
E.16ml

参考答案：B

因补钾的浓度不应超过0.3%，故0.3%×300ml÷10%=9ml，选B。

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