Mmsc407 exam study guide - Study guides, Class notes & Summaries

nonprotein nitrogen(NPN) Urea Nitrogen (BUN) 45%, Amino Acids 20%, Uric Acid 20%, Creatinine 5%, Creatine 1-2%, Ammonia 0.2% Renal disease an increased plasma non-protein nitrogen can indicate azotemia increased amount of NPN compounds in blood Blood Urea Nitrogen(BUN) Biosynthesis of Urea Nitrogen, The catabolism of Protein from exogenous (dietary) or endogenous(tissue) sources by the body will yield ammonia which will be enzymatically complexed by the liver to form urea.