US · guidance
CMS SOM App. C, Tag D5461
§493.1256 Standard: Control procedures
(d)(6) Perform control material testing as specified in this paragraph before
resuming patient testing when a complete change of reagents is introduced; major
preventive maintenance is performed; or any critical part that may influence test
performance is replaced.
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
ff6ed8e0fc5177f2a8d51dc56c381a592c1e196b908f4b2ae47e02a0355d57a9
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