Information on the EQA test Array Diagnostics


Aim of this interlaboratory testing is the evaluation of the technical performance of array diagnostics as well as the data analysis, the reporting and the interpretation of the results in order to improve the daily laboratory routine.

Performance interval

Once per year.


Either two DNA samples along with the clinical information of fictional patients are sent to the laboratories or one DNA sample plus the array data of a case with specific questioning is supplied. At the beginning of the EQA test, all relevant data concerning deadlines for application and participation, dispatch of samples and certificates will be provided on


The array diagnostics should be performed according to the laboratory's own standard operation procedures. The diagnostic report which comprises the result of the array analysis as well as the interpretation regarding the specific indication should be submitted to


Qualitative and quantitative accuracy of the array results considering specific array thresholds and the correct interpretation regarding the indication.


A certificate will be provided which states whether the criteria were met and participation was successful. The certificate is valid for two years.

EQA test supervisor

Dr. med. Ina Schanze
Otto-von-Guericke-Universität Magdeburg, Institut für Humangenetik
Leipziger Straße 44
39120 Magdeburg

Dr. Eveline Fiedler
Klinikum Stuttgart, Institut für Klinische Genetik
Kriegsbergstraße 62
70174 Stuttgart

If you would like to contact the EQA test supervisor(s), please call or e-mail the Coordination Office QA of BVDH:
Phone: +49 2403 83 80 54

Status as of: May/2020