A 50 years old female is admitted with abdominal pain and anuria. Radiological studies revealed: bilateral impacted ureteric stones with hydronephrosis. Urine analysis showed RBCs with pus cells in urine. Serum creatinine level was 16 mg/dL and urea level was 200 mmol/L. Which of the following should be the immediate treatment?
Hemodialysis 'j' stent drainage Lithotripsy Ureteroscopic removal of stones