31.) Is a corrective action log maintained, up-to-date?
32.) If a QC measure is out of control and the data is to be reported, are data qualifiers reported with samples associated with failed QC measures?
33.) Are all quality control measures assessed and evaluated on an on-going basis, and quality control acceptance limits used to determine the usability of the data?
34.) Does the laboratory have procedures for the development of acceptance/rejection criteria where no method or regulatory criteria exist?
35.) Are the quality control protocols specified by the laboratory’s method manual followed?