Randox (EQA & IQC)

Internal Quality Control (IQC)

Monitoring Test System Precision/Reproducibility

Carried out daily, providing real-time performance assessment.
No interlaboratory performance comparison without an additional peer group reporting program.
Useful for detecting sudden or gradual shifts in performance.
IQC samples should be manufactured with a matrix which is as close to the patient sample as possible.

External Quality Assurance (EQA)

Monitoring Test System Accuracy

Carried out less frequently (generally once per month), providing a retrospective assessment of performance.
Results are compared to labs using the same instrument/methos type providing an indication of any test system bias.
Effective in detecting more complex problems, such as calibration issues.
EQA samples should be manufactured with a matrix which is as close to the patient sample as possible.