1Tested only by the most experienced technologist using a specially validated procedure
2Compared with a nearby laboratory before the results are reported
3Repeated as many times as needed until the expected value is obtained
4Tested in the same manner as patient samples, without consulting other laboratories✓ 정답
해설
Proficiency testing is intended to reflect routine laboratory performance, so the samples must be handled by the same method and the same personnel as patient specimens, and comparing results with another laboratory is prohibited. Any special handling is itself a regulatory violation.