The scheme is designed for monitoring the continuing performance of your laboratory from month to month during a year. The same serum is used daily, weekly or monthly. The target values are stated. Results are processed monthly.
Long-term visual reports will enable you to assess the acceptability of the internal variation and performance of methods in your laboratory in comparison with your peer group and all others. External long-term quality assessment supports the internal quality assurance of your laboratory. Analytical performance marked with CV 50 % and CV 90 % in the report provide a means to evaluate your laboratory´s internal variance and indicate quality criteria.
