Residual Renal Function in Patients on 3 times/week hemodialysis (mL/min)
(Urine_Volume_BT_Dialysis_1_and_2 * Urine_Urea_Concentration) / ((Hemodialysis_Interval * 60) * ((.25 * BUN_After_1st_Dialysis) + (.75 * BUN_After_2nd_Dialysis)))
BUN after 2nd dialysis (mg/dL)
Urine urea concentration (mg/dL)
Time between 1st and 2nd dialysis (hours)
BUN after 1st dialysis (mg/dL)
Urine volume between dialysis 1 and 2 (ml)
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