We strongly recommend that all laboratories consider using PRS for their IHC biopsy staining process particularly in view of the fact that WHO states this quality control component is an essential element. By including this, the laboratory can confirm the efficacy of reagents used, tissue handling, and process control of the patient sample through the IHC processing. Thus, the laboratory can document that its processing of the biopsy sample is valid prior to the diagnostic interpretation being performed. Of course, the biopsy may not contain any of the sought for conditions and the outcome would be a true negative result.
WHO also goes on to stress that if QC is missed from the process, then laboratories should not consider reporting the patient results at all:
If QC results are not what are expected, do not report patient results.
If you are a laboratory that wishes to comply with the WHO guidelines, then the Process Record Slide (PRS) product is for you. Contact us now for full details and get your laboratory fully QC compliant and your patient reports fully controlled and recorded.