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Dear All, I have had a query form an anaesthetist who wants to do a small study (20-30 patients) to determine the incidence of aspiration events in anaesthetised patients. They are interested in a marker of gastric fluid that would be detectable in tracheal fluid. Apparently pepsin has been used in other studies – does anyone know of a lab that can measure pepsin (nothing on Assayfinder)? Any other ideas for suitable markers? They didn’t seem keen on pH as a possibility. Please reply directly to me; [log in to unmask] Best wishes, Andrew Andrew P Brown Pre-registration Clinical Scientist Biochemistry Blackpool Victoria 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/