Hi Barbi - We are somewhere in-between with our ER/PR Controls. When performing lot to lot validations, we use our in-house control, which only has a 0 and a 3+, BUT we also use a commercially prepared control that contains 4 cores, 0. 1+, 2+, 3+. Once the new lot of antibody has been validated against both controls, then we only use our inhouse control with the 0 and 3+. It just saves on time and money. Hope this helps, Sincerely, Terri
Terri L. Braud, HT(ASCP) Anatomic Pathology Supervisor Laboratory Holy Redeemer Hospital 1648 Huntingdon Pike Meadowbrook, PA 19046 ph: 215-938-3689 fax: 215-938-3874 Care, Comfort, and Heal Today's Topics: 2. ER/PR controls (Moe, Barbi A) 3. Re: ER/PR controls (Colleen Forster) Message: 2 Date: Wed, 13 Mar 2019 17:43:51 +0000 From: "Moe, Barbi A" <ba...@gundersenhealth.org> To: "histonet@lists.utsouthwestern.edu" <histonet@lists.utsouthwestern.edu> Subject: [Histonet] ER/PR controls For anyone making in-house ER/PR controls could you comment on what tissue you have in your control block -- one piece of positive tumor regardless of reactivity strength 1+, 2+, 3+ (weak, medium, strong) or multiple pieces to represent each level of reactivity? Also, does anyone order commercially their ER/PR controls to achieve this level of representation in their control block? Any thoughts are appreciated - thank you. Barb Moe Gundersen Health System La Crosse WI ba...@gundersenhealth.org _______________________________________________ Histonet mailing list Histonet@lists.utsouthwestern.edu http://lists.utsouthwestern.edu/mailman/listinfo/histonet