I have not heard that BD was using plastic EDTS tubes, but cells, especially ceratin population of WBC will stick to the plastic (unless its a special plastic) This could really cause you problems. Tim Chance CDC Atlanta, GA -----Original Message----- From: Robbi.Montgomery@co.hennepin.mn.us [mailto:Robbi.Montgomery@co.hennepin.mn.us] Sent: Friday, November 30, 2001 9:21 AM To: cyto-inbox Subject: plastic tubes for CD4 counts I have just been told that BD is discontinuing glass EDTA vacutainer tubes as of December 31, 2001 and that we will therefore be using plastic vacutainer tubes to draw all EDTA tests, including CD4 counts. Has anyone made this switch already? Have there been any problems? Did you do a cross-over study? I have heard of problems for some chemistry and coagulation assays using plastic heparin and sodium citrate tubes. Robbi Montgomery MT(ASCP)SI Hennepin County Medical Center Minneapolis, MN robbi.montgomery@co.hennepin.mn.us
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