Abstract
Abstract Chronic renal failure is a progressive decline of the kidney function leading to accumulation of toxins and fluid. Hemodialysis is a method of renal replacement therapy that is used to achieve the removal of that waste product such as creatinine and urea from blood by an artificial kidney machine. The aim of the study was to compare serum urea, creatinine, sodium, and potassium and chloride levels in chronic renal failure patients before and after dialysis. This study was conducted on 35 patients. All patients had renal failure and enter the dialysis department in Gharyan teaching hospital. It was found that the mean level of serum urea, creatinine and potassium were significant difference between pre and post dialysis. The pre-hemodialysis urea was 142.2 ± 34.1 mmol/L and post-hemodialysis urea was 45.7 ± 15.8 mmol/L. The pre-hemodialysis creatinine was 11.9 ± 3.2 mmol/L and posthemodialysis creatinine was 4.3 ± 1.5 mmol/L. The pre-hemodialysis potassium was 5.1 ± 0.8 mmol/L and post- hemodialysis potassium was 3.6 ± 0.4 mmol/L. There is decrease in serum urea, creatinine as well the level of potassium before and after hemodialysis. While the level of serum sodium and chloride not significantly changed after hemodialysis. Keywords. Serum Electrolytes, Chronic Renal Failure, Hemodialysis