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Lead inconsistecy update
Sep 22, 2025 04:50 PM
They have stopped using UTAK's Lead controls due to vial to vial variability as well as discrepnecy with the verified values compared to received results. We sent samples of our newest lot to try and win back the business and got this feedback Andrew, My staff informed me that the free UTAK samples arrived last week. REF 93311 Verified Value for ICP / MS (6.6 ug/dL) and GFAAS (6.0) compare positively. REF 93312 Verified Value for ICP / MS (18 ug/dL) and GFAAS (23) compare negatively. WSLH lowered the acceptable range for PT samples to ±2 ug/dL. A control sample’s concentration should not differ regardless of technique. V/R Wayne Wilhelm Laboratory Supervisor, Department of Public Health Saint Louis County 6121 North Hanley Road Berkeley, MO 63134 OFC: 314.615.6833 stlouiscountymo.gov Opportunity Central
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  • Completed Sep 22, 2025 04:51 PM
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  • Created Sep 22, 2025 04:51 PM
    Activity created