Urea nitrogen^post dialysis:MCnc:Pt:BldV:Qn
urea nitrogen^post dialysis:mcnc:pt:bldv:qn
Urea nitrogen^post dialysis:Mass Concentration:To identify measures at a point in time:Blood venous:Quantitative
urea nitrogen^post dialysis:mass concentration:to identify measures at a point in time:blood venous:quantitative