Re: Use of quick freeze spray during frozen sectioning

In the small pathology practices I work in, usually with cryostats 20 to 30 
years old, the freezing spray is usually the only freezing method available. 
Some of the older units don't even have the metal heat extractors, and 
retrofits for these things don't work. I can't imagine what a Histobath might 
be - we'll get it twenty years after its introduction, whenever that may have 

I agree that the freezing sprays are a real hazard to health because of the 
possibility of spreading tuberculosis, but as long as only the pathologist is 
exposed I don't think anybody out there much cares.

Bob Richmond
Samurai Pathologist
Knoxville TN

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