- Enough renal function: Serum creatinine < 1.5 x ULN or creatinine clearance calculation value greater than 50 ml/min, and Forced the urine dipstick test results showed that urinary protein < 2 +. For those with baseline urine dipstick test showed that urinary protein of > 2 +, a 24-hour urine collection and 24 hours urine protein content must be 1 gb or less may be selected;