| Abstrakt | | Acute renal failure may be: prerenal, postrenal, parenchymal. When acute renal failure is suspected, the concentrations of creatinine, urea, uric acid, K, Na, C1, bicarbonate, P and Ca in blood must be determined. In urine, the concentrations of Na, K and urea must be defermined and osmolarity measured. Proteinuria is determined and the sediment investigated. It is important to send the patient for an US examination of the kidneys. Hyperkalemia represents the greatest danger within the complex of acute renal failure.
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