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Some of use processes that add information when the specimen is collected, others don’t (and probably infer the actual date and time). The former would make it trivial to catch this problem. There’s a recent discussion of this variation in the archives. But either way would it be a good idea to check the date and time of request when the specimen hits the laboratory? Jonathan On 6 Mar 2019, at 08:42, Ivison Fiona (R0A) Manchester University NHS FT <[log in to unmask]<mailto:[log in to unmask]>> wrote: From an IT point of view, with our numbering system, if requests are not filed within 6to 12 months then there is a risk the barcode assigned to the request in ICE has been re-assigned already and the results then match to the wrong PID. Vigilance at booking in and authorisation of results picks these up but if the results are comparable with previous (different patient) and the imminent introduction of automated booking in…… ________________________________________ From: Clinical biochemistry discussion list [[log in to unmask]<mailto:[log in to unmask]>] on behalf of Andrew Lyon [[log in to unmask]<mailto:[log in to unmask]>] Sent: 05 March 2019 21:10 To: [log in to unmask]<mailto:[log in to unmask]> Subject: [EXTERNAL] Should clinical laboratory requisitions 'expire' ? ________________________________ WARNING: This message originated from an external source. Please exercise caution when opening any attachments or clicking on links. ________________________________ Hello ACB List-Lurkers. We have no expiration date on laboratory requisitions that are distributed to patients by local physicians that practice in community-based clinics. A patient recently appeared for phlebotomy and presented three requisitions (from the past 2 years !) which our staff dutifully read, collected samples and lab staff tested. The lab results provoked questions by the clinic staff and our lab staff. Should single-use lab requisitions expire after 4 to 6 weeks? Lab requisitions that are 2 years old likely initiate lab tests that are no longer relevant for recent medical conditions. In this case situation many of tests ordered 2 years ago had little use. Prescriptions / scripts for medication orders expire if they are not promptly filled...... in a similar way, should lab requisitions for community-based patients expire? I am not aware of any lab standards related to this topic and look forward to your comments and experiences with this type of problem. ------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 who posts and they are solely responsible for all message content. The ACB does not monitor posts. 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/