Re: Blue staining on smears

From:David Pereira <>

Exposure to formaldehyde fumes can cause this problem.

>>> "George, Cheryl" <> 10/12 3:24 PM >>>
Hi all,

I have a question.  One of the hospitals that sends us bone marrow smears
(they send the unstained smears which are stained here using Wright-Giemsa)
continually come out blue.  They claim that they are not using a pretreated
slide or anything unusual but even if we stain them side-by-side with one of
our own, ours come out purple and theirs are still blue.  Could an EDTA tube
be the problem?  I could sure use your help.


Cheryl George, HT (ASCP)
Anatomic Pathology Supervisor

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