I agree.
I would always include a negative control with each block stained.

Tony Henwood JP, BappSc, GradDipSysAnalys, CT(ASC)
Laboratory Manager
The Children's Hospital Westmead,
Locked Bag 4001, WESTMEAD, AUSTRALIA, 2145
Tel: (02) 9845 3306
Fax: (02) 9845 3318



Laurie Colbert wrote:

> Is there a good reason to run a negative control on every block when
> staining IHC's?  We do a lot of keratin stains on lymph nodes from the
> same specimen (not part A, part B, etc.) and we run a negative control
> along with the keratin on every block.
>
> Laurie Colbert