Summary:
Summary Statement of Deficiencies D5215 EVALUATION OF PROFICIENCY TESTING PERFORMANCE CFR(s): 493.1236(b)(2) The laboratory must verify the accuracy of 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 or results). This STANDARD is not met as evidenced by: Based on surveyor review of proficiency testing (PT) reports and procedures and interview with the medical laboratory technician (MLT) the laboratory did not follow the laboratory procedure and did not review one of one non-consensus scored result returned by the PT provider in 2022 to verify the accuracy of the score. Findings include: 1. Review of PT records from 2022 showed the second event from the Wisconsin State Laboratory of Hygiene (WSLH) included a non-consensus result for sample SU-4. The laboratory reported bacteria, the expected result was calcium carbonate crystals. The records show no indication of review by the laboratory. 2. Review of the laboratory's procedure, "WSLH Proficiency Testing" showed the procedure required review of non-consensus results. The procedure provides the following instructions when an unreported or non-consensus result is received from the PT provider, "the performing laboratory personnel will research the results, and discuss with all laboratory personnel their findings. Results report and documented research results/methods are then signed by MLT and filed into the WSLH Proficiency Testing binder". 3. Interview with the MLT testing personnel on January 29, 2024, at 12:40 PM confirmed the non-consensus score was not identified or evaluated to verify the accuracy of the score. Statement of Deficiencies (X1) Provider/Supplier/CLIA Identification Number (X3) Date Survey Completed Name of Provider or Supplier Street Address, City, State -- 1 of 1 --