Publication Date
8-1-2022
Journal
Practical Laboratory Medicine
DOI
10.1016/j.plabm.2022.e00282
PMID
35637639
PMCID
PMC9144011
PubMedCentral® Posted Date
5-23-2022
PubMedCentral® Full Text Version
Post-print
Published Open-Access
yes
Keywords
Method verification, Performance, Analyte, Assay, Vitros, XT slide
Abstract
OBJECTIVES: Pediatric hospitals are always challenged by specimen volumes and thus any innovation in this realm is very welcome. With the introduction of Microslide assay pairs, we aimed to evaluate the analytical performance of the Vitros XT MicroSlide assay pairs on the Vitros XT 7600 compared to single MicroSlides.
DESIGN: Performance characteristics included within-run precision, analytical measurable range, method comparison, and interference verification. We compared six XT MicroSlide pairs on the Vitros XT 7600 with twelve corresponding single slide assays on the Vitros 5600 system.
RESULTS: The XT MicroSlides on Vitros XT 7600 demonstrated excellent precision, equivalent analytical measurable range, and strong method correlation with single slide assays on Vitros 5600 for most of the assays tested. Within-run CVs of the analytes ranged between 0.32% and 2.93% with between-run CV of less than 8.8% and linearity for all analytes was within the manufacturer's specified range. Interference studies showed comparable effects of hemolysis, lipemia, and bilirubin on both instruments.
CONCLUSIONS: The XT MicroSlides are comparable to the single MicroSlide assays with improved efficiency, turnaround times and lower sample volumes.
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