isn't calculating renal tubular reabsorption of phosphate a much more accurate test than calculating urine phosphate to creatinine ratio? have a look at this: http://www.ncbi.nlm.nih.gov/pubmed/10672378 you should obtain a copy of this excellent paper upon request to the corresponding author regards, Dr Joseph Watine, PH, AIHP, PharmD, AAHU, EurClinChem Laboratoire de Biologie Polyvalente Centre Hospitalier La Chartreuse Avenue Caylet 12200 Villefranche-de-Rouergue France Date: Thu, 15 Nov 2012 09:28:20 +1300 From: [log in to unmask] Subject: Re: urine calcium and phosphate to creatinine ratios To: [log in to unmask] RE: urine calcium and phosphate to creatinine ratios Hi Peader See www.chl.co.nz for details. cheers Trevor "Come on Manchester get in behind global warming and grow your own bananas" Trevor Walmsley, Senior Scientific Officer (www.hospitalscientists.org.nz) Canterbury Health Labs, Christchurch, New Zealand. Phone: (0064 3) 364 0326 Fax:Phone: (0064 3) 364 0320 eMail: [log in to unmask] Internet: http://www.hospitalscientists.org.nz/authorspub.php?key=639 -----Original Message----- From: Clinical biochemistry discussion list on behalf of Dr Peadar McGing Sent: Thu 15/11/2012 8:29 AM To: [log in to unmask] Subject: urine calcium and phosphate to creatinine ratios Dear colleagues, I am looking for some help regarding adult reference intervals for urine calcium to creatinine ratio and phosphate to creatinine ratio. I would appreciate if you could send me the reference ranges you use if you report these parameters. I have some information from literature searches but not many actual ranges for adults, and more ambiguity than I would like in what I have found. The source of your range would also be useful. Thank you all in anticipation. best wishes. Peadar Dr Peadar McGing, FRCPath EurClinChem, Principal Biochemist, Biochemistry Dept., Mater Misericordiae University Hospital, Eccles Street, Dublin 7, Ireland. Tel: (+353 1)8032374; Fax: (+353 1)8034781. This e-mail and any files transmitted with it contain information which may be confidential and which may also be privileged and is intended solely for the use of the individual or entity to which it is addressed. Unless you are the intended recipient you may not copy or use it, or disclose it to anyone else. Any opinions expressed are that of the individual and not necessarily that of Mater Misericordiae University Hospital. ------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 Green Laboratories Work http://www.laboratorymedicine.nhs.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/ ------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 Green Laboratories Work http://www.laboratorymedicine.nhs.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/ ------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 Green Laboratories Work http://www.laboratorymedicine.nhs.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/