title: Urinary urea nitrogen ratios: further observations.
abstract: The urea nitrogen/total nitrogen (UN/TN) and urea nitrogen/creatinine nitrogen (UN/CN) ratios in urine were compared as indicators of recent protein intake in pregnant women. The UN/CN ratio more accurately predicted recent dietary protein levels. The effects of other factors, including diabetes mellitus, on the UN/CN ratio were investigated. The UN/CN ratio is a simple and effective means of determining recent protein intake in the pregnant woman.
mesh_terms: D003404:Creatinine / Q000652:urine*; D004044:Dietary Proteins / Q000378:metabolism*; D005260:Female; D006801:Humans; D009584:Nitrogen / Q000652:urine*; D011247:Pregnancy; D011263:Pregnancy Trimester, Third; D011254:Pregnancy in Diabetics / Q000652:urine; D012034:Refrigeration; D013048:Specimen Handling; D014508:Urea / Q000652:urine*
chemical_list: D004044:Dietary Proteins; D014508:Urea; D003404:Creatinine; D009584:Nitrogen