[Histonet] time in paraffin and fried bloody specimen

[Nancy Schmitt]

Good Morning Histonetters-

First question:  Textbook says "tissue should remain in paraffin the shortest time necessary for good infiltration because exposure to prolonged heat causes shrinkage and hardening".  Can anyone define "exposure to prolonged heat"?  Is that an hour? Three hours?  Sitting in the paraffin waiting to be drained.  I would appreciate some insight on this.
Second question:  Endom, POC tissue, even some sinus contents arrive wrapped in lens paper.  These bloody specimens are fried (for lack of a better word) and almost impossible to separate from the lens paper.  Is there something different we or the PA can be doing differently or just the nature of the tissue.

Thanks for your help!
Nancy



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