When it is cold outside, samples shipped via postal or commercial carriers could be exposed to very low temperatures that destroy intact cells. Consider the following, to minimize the risk of damaged samples:


  • Serum samples should be spun and separated, since frozen RBCs can lyse and result in hemolysis in the serum.
  • Separator gel may prove an inadequate barrier in very cold weather. For those who have 3-step quick stains, Cytology slides can be fixed with a few dips in methanol fixative prior to shipping.
  • Liquid samples are best preserved by packing them in insulating material. Styrofoam packs, silver mylar baggies and bubble wrap all help with insulation.


If you have questions about ensuring the integrity of your samples, just give us a call.