GSTM1 and Hyperkalemia: Laboratory results showed anemia (Hb 11.4 g/dl), leukocytosis (27.99 x 10<sup>3</sup>/ul), increased blood urea nitrogen (BUN) (60 mg/dl), increased serum creatinine (9.93 mg/dl), hyperkalemia (6 mmol/l), urine leukocytes +3; 15-20/hpf.