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The amylase creatinine clearance ratio used to be in vogue to differentiate hyperamylasaemia due to acute pancreatitis from other causes, the ACCR is > 5% in acute pancreatitis and less than 5% in other conditions associated with hyperamylasaemia. Also in late presenting acute pancreatitis patients, urinary amylase tend to stay elevated for >72 hours. Regards Mohammad Dr. M A Al-Jubouri, MB ChB, MSc, EurClinChem, FRCP Edin, FRCPath Consultant Chemical Pathologist -------------------------------------------- On Wed, 26/6/13, Colley, Michael <[log in to unmask]> wrote: Subject: Re: Urinary amylase To: [log in to unmask] Date: Wednesday, 26 June, 2013, 14:45 Your mailing stimulated me to survey our usage. Samples NEQAS 2010 13 33 2011 1 33 2012 6 36 2013(so far) 4 15 ------ ----- 24 117 Of these there have been 3 high urine amylase values, of which 2 had elevated serum amylase. The other had no serum amylase associated with it. On the other hand there were 5 elevated serum amylases with normal associated urine amylase. As you say, is this a worthwhile test? Michael -----Original Message----- From: Clinical biochemistry discussion list [mailto:[log in to unmask]] On Behalf Of Woodrow Iain Sent: 26 June 2013 12:10 To: [log in to unmask] Subject: Urinary amylase Dear Mailbase users, We currently offer urinary amylase but a recent audit showed that we are receiving an average of just over one patient test a month, plus analysing some 5 times this number in EQA samples. However, in addition to serum amylase, we also have serum lipase as an additional test for pancreatitis, so are considering removing the urine test from our routine repertoire. Have any users done this and, if so, have you encountered any problems from service users? Regards, Iain Dr Iain Woodrow, Clinical Biochemist Department of Clinical Biochemistry Pinderfields General Hospital Aberford Rd Wakefield WF1 4DG Phone 01924 317061 or 317000 We're now on Twitter! Follow us: @MidYorksPathLab ------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/ Great Western Hospitals NHS Foundation Trust Great Western Hospital Marlborough Road Swindon SN3 6BB Tel 01793 60 40 20 http://www.gwh.nhs.uk Register to become a member of the Trust at https://members.gwh.nhs.uk This message and any files transmitted with it are confidential and intended solely for the individual(s) addressed. If you believe you have received this e-mail in error, disclosing, copying, distributing or retaining this message, or any part of it, is strictly prohibited; please notify the sender immediately and delete it from your system. Any views or opinions presented are solely those of the author and do not necessarily represent those of Great Western Hospitals NHS Foundation Trust. All messages sent by the Trust are checked for viruses but this does not, and cannot, guarantee that a virus has not been transmitted. The Trust accepts no liability for any damage caused by any virus transmitted with this e-mail. ------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/