I have been thru 2 CAP inspections and have never seen that question.  The
important aspect is that the positive control tissues stain appropriately in
your laboratory.  If one of my pathologists has a question about an IHC
test, we send a few of the tests in question to be validated.  I would think
it would be the decision of the pathologist in charge and what he/she is
comfortable with.  Then there is the issue of billing, payment, etc., but
that's another subject.

Jacquie Poteete MT(ASCP) QIHC, Lead Technologist IHC Lab
Saint Francis Hospital, Tulsa, OK
japoteete@saintfrancis.com

> -----Original Message-----
> From:	Joyce Cline [SMTP:jcline@wchsys.org]
> Sent:	Friday, January 30, 2004 1:18 PM
> To:	histonet@lists.utsouthwestern.edu
> Subject:	[Histonet] Validation for IHC
> 
>      Does anyone send their positive control tissue to another lab for
> validation of their immuno staining?
>      The path that is over the immuno area wants me to varify the use of
> my patient controls by sending to another lab to show that these controls
> are positive by another source.
>      Has anyone been CAP inspected and asked if they do this? Seems he
> thinks an inspector is going to ask this.
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> 
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