title: Renal function status.
abstract: OBJECTIVE
  The objective of this article is to review and evaluate the various parameters used in determining renal status.
  
  
  CONCLUSIONS
  The physiologic determination of renal status is the measured glomerular filtration rate (mGFR). Serum creatinine, blood urea nitrogen, cystatin C, and estimated GFR (eGFR), based on serum creatinine have failed to replace mGFR. All physicians should be aware of limitations of substituted mGFR.
authors.affiliation: Department of Radiology, New York University Langone Medical Center, 535 E 86th St., New York, NY 10028-7533, USA. Joshua.Becker@nyumc.org
authors.forename: Joshua
authors.initials: J
authors.lastname: Becker
authors.forename: Eli
authors.initials: E
authors.lastname: Friedman
mesh_terms: D001806:Blood Urea Nitrogen; D003404:Creatinine / Q000097:blood; D055316:Cystatin C / Q000097:blood; D005919:Glomerular Filtration Rate; D006801:Humans; D007668:Kidney / Q000502:physiology*; D007677:Kidney Function Tests
chemical_list: D055316:Cystatin C; D003404:Creatinine