Neonatal with acute renal failure can have some nonspecific symptoms, such as refusal to eat, vomiting, pale skin and weak pulse. In addition to these nonspecific symptoms, neonatal acute renal failure has some of the major symptoms, including oliguria and absence of urine. Of course, during the course of oliguria or non urinary symptoms, there may be some concomitant symptoms, such as edema, hypertension, and heart failure or pulmonary edema.
Neonatal weight loss increases after acute renal failure and is prone to brain edema or convulsions at this time. Ascites can sometimes be produced. Neonatal acute renal failure is mainly pided into oliguria phase, oliguria phase, polyuria phase and recovery period.
Oliguria period usually lasts for about 3 days, and at this stage it is prone to electrolyte disorders and is prone to occur hyponatremia. In fact, whether or no urinary oliguria period are likely to cause electrolyte disorder, this time can occur or hypocalcemia and hyperphosphatemia, also easy metabolic acidosis.
During the polyuria phase, the urine volume increases rapidly, leading to dehydration at this stage and is easily induced by hyponatremia or hypokalemia. When the child is in convalescence, the amount of urine will increase gradually, at this time prone to uremia.
Some complications of neonatal with acute renal failure require attention, for example, may lead to heart failure or arrhythmias, and may lead to pulmonary edema or metabolic acidosis.

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