US · guidance
CMS SOM App. C, Tag D2094
§493.841 Standard: Routine chemistry
(e)(1) For any unsatisfactory analyte or test performance or testing event for
reasons other than a failure to participate, the laboratory must undertake
appropriate training and employ the technical assistance necessary to correct
problems associated with a proficiency testing failure.
(2) For any unacceptable analyte or testing event score, remedial action must be
taken and documented, and the documentation must be maintained by the
laboratory for two years from the date of participation in the proficiency testing
event.
History
Rev. 233; Issued: 09-12-25; Effective: 09-12-25; Implementation: 09-12-25
Provenance
- Source
- cms.gov
- Retrieved
- 2026-07-22
- Edition
- som-2026-07-22
- Content hash
2c75d6446dc1dfc18119b74457d5b2d749cb16ff060075ca9e18b84d330146ed
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