“肾炎”和“肾病”是小儿常见肾脏病,几乎全部伴有水肿,往往家长予以禁盐或者长期给予无钠盐。尤其在肾功能衰竭时尿量明显减少,血压又高,此时应限盐,若水肿减轻,尿量正常时,要给正常盐,千万不能长期限盐或忌盐,这样做会导致低钠血症,轻者引起头晕、恶心、肌肉软弱无力,重者引起脑水肿、头疼、呕吐,甚至抽风昏迷。这样的病例,我们常常遇到,甚至达 “Nephritis” and “kidney disease” is a common kidney disease in children, almost all accompanied by edema, parents often banned salt or long-term administration of sodium salt. Especially in renal failure significantly reduced urine output, high blood pressure, this time should be limited to salt, if edema to reduce the normal urine output, to give normal salt, salt should not be long-term or avoid salt, doing so will result in low Sodium hyperlipidemia, light caused by dizziness, nausea, muscle weakness, severe cases caused by cerebral edema, headache, vomiting, and even convulsions. Such cases, we often encounter, or even up