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Physical separator for prolonged specimen storage


Alice Chan

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I read from the recent BCSH Guidelines for pre-transfusion compatibility procedures in blood transfusion laboratories (Appendix 2) that there is a method available for prolonged storage of routine T&S samples. "If physical separators (devices that are commercially available that can be introduced post routine testing into the primary sample, inserting a physical barrier between the red cells and plasma) are used, this then negates the need for plasma separation while retaining plasma for testing and original sample tube for inspection of patient ID as necessary."

Can anyone kindly advise on what exactly are these physical separators, any experience on their utility and recommend any brand names? Thanks a lot.

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