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CFR > Title 42 - Public Health > CHAPTER IV—CENTERS FOR MEDICARE & MEDICAID SERVICES, DEPARTMENT OF HEALTH AND HUMAN SERVICES > SUBCHAPTER G—STANDARDS AND CERTIFICATION (parts 482 to 498) > PART 493—LABORATORY REQUIREMENTS > SUBPART K—Quality System for Nonwaived Testing (§493.1200 to §493.1299) > 493.1236—Standard: Evaluation of proficiency testing performance.

CFR

493.1236—Standard: Evaluation of proficiency testing performance.

(a) The laboratory must review and evaluate the results obtained on proficiency testing performed as specified in subpart H of this part.
(b) The laboratory must verify the accuracy of the following:
(1) Any analyte or subspecialty without analytes listed in subpart I of this part that is not evaluated or scored by a CMS-approved proficiency testing program.
(2) Any analyte, specialty or subspecialty assigned a proficiency testing score that does not reflect laboratory test performance (that is, when the proficiency testing program does not obtain the agreement required for scoring as specified in subpart I of this part, or the laboratory receives a zero score for nonparticipation, or late return of results).
(c) At least twice annually, the laboratory must verify the accuracy of the following:
(1) Any test or procedure it performs that is not included in subpart I of this part.
(2) Any test or procedure listed in subpart I of this part for which compatible proficiency testing samples are not offered by a CMS-approved proficiency testing program.
(d) All proficiency testing evaluation and verification activities must be documented.
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