③ urinary alteration urine specific urine volume gravi a early ADH t stage ADS± late ADh T stage ADS 1 ↓ 3)principles of treatment 先水,后盐;补水大于补钠。③urinary alteration urine specific urine volume gravity [Na+ ] ---------------------------------------------------------------- early ADH stage ADS ± late ADH stage ADS ----------------------------------------------------------------- 3) principles of treatment 先水，后盐；补水大于补钠