A customer contacted the ortho clinical diagnostics (ortho) technical solution center (tsc) to report lower than expected free t4 (ft4) results were obtained when the customer processed a non-vitros (mas) level 1 qc using vitros ft4 lot 5400 on a vitros 5600 integrated system.Mas lia2490a level 1 results of 1.24, 1.36, 1.16, 1.17, 1.17, 1.23 and 1.16 ng/dl versus the baseline mean value of 2.52 ng/dl biased results of the magnitude and direction observed may lead to inappropriate physician action if they were to occur undetected on patient samples.The lower than expected vitros ft4 results were obtained when the customer was processing a non-patient fluid.There has been no allegation of patient harm as a result of this event.This report corresponds to ortho clinical diagnostics inc (ortho) complaint number (b)(4) and reportability assessment (b)(4).
|
The investigation determined that lower than expected free t4 (ft4) results were obtained when the customer processed a non-vitros (mas) level 1 qc using vitros ft4 lot 5400 on a vitros 5600 integrated system.The cause of the event was an instrument related issue, specifically an issue with a kink observed in the uwr tubing.Vitros b12 and vitros b-hcg ii results were also deemed unacceptable around the time of the event and once the issue with the uwr tubing was resolved, vitros ft4, vitros b12 and vitros b-hcg ii results from mas qc testing returned acceptable results.Historical qc results indicated acceptable vitros ft4 lot 5400 reagent performance and qc results since the correction to the uwr tubing were acceptable.
|