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I would agree, and the GFR will anyway be overestimated as it is likely that there will be a signicant component to excretion from tubular secretion. William Marshall At 12:19 29/08/2002 +0200, Dr. M. Steiner wrote: >Dear Colleagues, > >We have a request for a creatinine clearance based on a 24h urine output >of only 120 ml (near anuric patient). I am in doubt if the analysis of >clearance will yield clinically useful information given the low urine >volume. >I would like to learn if other labs reject creatinine clearance requests >provided the 24 h urine volume is below a certain limit. > >Sincerely, > >Dr. med. Michael Steiner >University of Rostock >Institute of Clinical Chemistry and Pathobiochemistry >Ernst-Heydemann-Str. 6 >D-18057 Rostock >GERMANY > >------ACB discussion List Information-------- >This is an open discussion list for the academic and clinical >community working in clinical biochemistry. >Please note, archived messages are public and can be viewed >via the internet. Views expressed are those of the individual and >they are responsible for all message content. > >ACB Web Site >http://www.acb.org.uk >List Archives >http://www.jiscmail.ac.uk/lists/ACB-CLIN-CHEM-GEN.html >List Instructions (How to leave etc.) >http://www.jiscmail.ac.uk/ From: Dr William J Marshall Reader and Hon Consultant in Clinical Biochemistry GKT School of Medicine London SE5 9PJ UK telephone: 020 7346 3275 facsimile: 020 7737 7434 email: [log in to unmask] ------ACB discussion List Information-------- This is an open discussion list for the academic and clinical community working in clinical biochemistry. Please note, archived messages are public and can be viewed via the internet. Views expressed are those of the individual and they are responsible for all message content. ACB Web Site http://www.acb.org.uk List Archives http://www.jiscmail.ac.uk/lists/ACB-CLIN-CHEM-GEN.html List Instructions (How to leave etc.) http://www.jiscmail.ac.uk/