- serum albumin of ≥ 3.2 g/dl, serum phosphate of <6.5 mg/dl, and serum hemoglobin of ≥9 mg/dl in consecutive two blood tests as per the National Kidney Foundation Disease Outcomes Quality Initiative (NKF KDOQI) guidelines [subjects failing screening due to blood test will be allowed to be re-screened in 30 days];