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I did a local (unpublished) study which showed that as long as there was absolutely no air bubble in the sample, the gases were unchanged. Any gas bubble content converts the air tube to a tonometer for those who remember them. With best wishes Richard Biochemistry Department Queen Mary's Hospital Sidcup, Kent DA14 6LT -----Original Message----- From: David Gaze [mailto:[log in to unmask]] Sent: Tuesday, February 25, 2003 12:18 To: [log in to unmask] Subject: Re: Pnuematic tube systems Astles JR et al. Pneumatic transport exacerbates interference of room air contamination in blood gas samples. Arch. Pathol. Lab. Med. 1996;120:642-7. Our study published data SUPPORTING the use of a PTS but we designed a pressure sealed container to avoid alteration to pO2. Ref: Collinson PO, John CM, Gaze DC, Ferrigan LF, Cramp DG. Changes in blood gas samples produced by a pneumatic tube system. J. Clin. Pathol. 2002;55:105-107 Regards ____________________________________________________________________________ ______________________ David C Gaze Cardiac Research Scientist Chemical Pathology St George's Healthcare NHS Trust Blackshaw Road Tooting London SW17 0RE Tel + 44 208 725 5878 Fax +44 208 682 0744 ----- Original Message ----- From: Adebisi, Richard <[log in to unmask]> To: <[log in to unmask]> Sent: Tuesday, February 25, 2003 11:16 AM Subject: Pnuematic tube systems > Hi there everyone, > Can anyone help me? Has anyone got any references about not using the > pnuematic tube system for transporting blood gases. > > Thanks > Mr Richard Adebisi > Pathology Dept > Barnet General Hospital > Barnet and Chase farm Hospitals NHS Trust > Office: 020-8216-4049 > > Mobile: 07973-859648 > > > THIS EMAIL AND ANY ATTACHED FILES ARE CONFIDENTIAL AND MAY BE LEGALLY > PRIVILEGED. > If you are not the addressee, any disclosure, reproduction, copying, > distribution, or use of this > communication is strictly prohibited. If you have received this transmission > in error please notify > the sender immediately and then delete this email. > Email transmission cannot be guaranteed to be secure or error free as > information could be > intercepted, corrupted, lost, destroyed, arrive late or incomplete, or > contain viruses. The sender > therefore does not accept liability for any errors or omissions in the > contents of this message > which arise as a result of email transmission. If verification is required > please request a hard copy > version. > > ------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/ > ------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/ ------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/