Abstract

Illuminating Z-Score in External Quality Assessment for Medical Laboratory

Sareen R

The main role of External Quality Assessment (EQA) is to score laboratories on the basis of their performance and provide scores like Q score and Z score to quantitative data to the participant laboratories. These scores are widely applicable for analytical laboratories by scaling difference in the participant’s result and assigned value. The present paper deals with interpretation of Z score and provides a clear understanding of the topic.