In my past experience assisting physicians collecting and processing bone marrows I can say that the use of too much heparin in a sample will cause it to become jelly-like. With most specimen we used the 5/10ml vials of injectable heparin that were used in the hospital to flush patients lines. We would draw up enough heparin into the desired size syringe to allow us to bring the plunger back and just wet the inside surface of the syringe (~ 500ul in a 10ml syringe - but this part is relative) and then expel all heparin except what was left in the hub and we never had problems. If you have any say in how the specimens get drawn I hope this helps. Jeanene Swiggett, BS MT(ASCP)SH General Surgery Research Cannon Research Center Carolinas Medical Center Charlotte, NC 704-355-7269 jswigget@carolinas.org *********************************************************************** This electronic message may contain information that is confidential and/or legally privileged. It is intended only for the use of the individual(s) and entity named as recipients in the message. If you are not an intended recipient of this message, please notify the sender immediately and delete the material from any computer. Do not deliver, distribute or copy this message, and do not disclose its contents or take any action in reliance on the information it contains. Thank you.
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