<qa>  What is the estimated amount of proteinuria in urine dipsticks?- Renal: Adequate renal function as evidenced by creatinine clearance of 50mlmin, estimated by the Cockcroft-Gault equation or urine dipstick for proteinuria 2 patients discovered to have 2 proteinuria on dipstick urinalysis at baseline should undergo a 24 hour urine collection and must demonstrate 1g of protein in 24 hours to be eligible 