Continuous sodium excretion in the urine

Sustained sodium excretion in urine belongs to the syndrome of inappropriate antidiuretic hormone secretion (SIADH), which refers to the continuous secretion of antidiuretic hormone when plasma osmotic concentration and normal or low blood sodium, resulting in free water clearance A syndrome with a series of clinical manifestations such as reduction, water retention, hyponatremia, and low osmotic blood pressure. In addition to the primary onset of symptoms, children with SIADH are parallel to the level of hyponatremia. When serum sodium is above 120mmol / L, clinical symptoms can be asymptomatic. When blood sodium falls below 120mmol / L, there may be loss of appetite and nausea. Symptoms such as vomiting appear. When the urine sodium content is high and the blood sodium is less than 110mmol / L, neuropsychiatric symptoms, even convulsions, and coma until death. When the blood sodium is less than 95 ~ 109mmol / L, it can cause irreversibility for 3 days. Brain damage, so hyponatremia should be corrected in time.

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