Urea nitrogen/Creatinine:MRto:Pt:Bld:Qn
urea nitrogen/creatinine:mrto:pt:bld:qn
Urea nitrogen/Creatinine:Mass Ratio:To identify measures at a point in time:Whole blood:Quantitative
urea nitrogen/creatinine:mass ratio:to identify measures at a point in time:whole blood:quantitative