一个人缺水多少,便觉口渴.( )A.~2% B.3~4% C.5~6% D.7~8%

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一个人缺水多少,便觉口渴.( )A.~2%     B.3~4%    C.5~6%     D.7~8%
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一个人缺水多少,便觉口渴.( )A.~2% B.3~4% C.5~6% D.7~8%
一个人缺水多少,便觉口渴.( )
A.~2% B.3~4% C.5~6% D.7~8%

一个人缺水多少,便觉口渴.( )A.~2% B.3~4% C.5~6% D.7~8%
A.2%
⑴轻度缺水:口渴.缺水量为体重的2~4%.
⑵中度缺水:极度口渴,乏力、尿少、尿色深浊、唇舌干燥、烦躁、皮肤弹性差、眼窝深陷.缺水量为体重的4~6%.
⑶中度缺水:除上述症状外,还出现幻觉、谵妄,直至昏迷.缺水量约为体重的6%以上.

B