The kidneys function is to filter theblood. If this ability of the kidney suddenly fails we call it Acute Kidney Injury. During this period the fluid levels in the body may rise to dangerous levels. It may develop over a few hours or few days. It is most common in people who are already hospitalized and are in need of intensive care.
The important symptoms are:
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Decreased urine output, though it might be normal at times.
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Swelling in legs, ankles or feet due to retention of fluids.
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Drowsiness, fatigue
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Nausea, Vomiting
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Chest pain or pressure, shortness in breath
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In some cases it may result in coma or seizures.