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EDTA plasma in glass and PET tubes is suitable for measurement of B-type natriuretic peptide on the Mindray CL-6000i.
Annals of Clinical Biochemistry 2023 Februrary 24
AIMS: To explore differences in BNP concentration and stability and evaluate BNP accuracy in different collection tubes.
METHODS: BNP concentrations in heparin/glass, EDTA/glass, and EDTA/ PET tubes were measured on the Mindray CL-6000i at 0.5, 1, 2, and 4 h after collection. Differences were evaluated using Wilcoxon's paired tests and Bland-Altman plots. BNP stability and measurement accuracies were estimated using Kruskal-Wallis H tests and recovery tests.
RESULTS: BNP concentrations in EDTA/glass tubes were 31.4% higher than those in heparin/glass tubes and 3.04% lower than those in EDTA/PET tubes. BNP stability significantly decreased in the heparin/glass tube. BNP remained stable in EDTA/glass and EDTA/PET tubes at room temperature for 4 h. BNP recovery rates in heparin/glass, EDTA/glass, and EDTA/PET tubes were 77.46, 86.04, and 88.23%, respectively.
CONCLUSIONS: Plasma in EDTA/glass and EDTA/PET tubes is suitable for BNP measurement on the Mindray CL-6000i.
METHODS: BNP concentrations in heparin/glass, EDTA/glass, and EDTA/ PET tubes were measured on the Mindray CL-6000i at 0.5, 1, 2, and 4 h after collection. Differences were evaluated using Wilcoxon's paired tests and Bland-Altman plots. BNP stability and measurement accuracies were estimated using Kruskal-Wallis H tests and recovery tests.
RESULTS: BNP concentrations in EDTA/glass tubes were 31.4% higher than those in heparin/glass tubes and 3.04% lower than those in EDTA/PET tubes. BNP stability significantly decreased in the heparin/glass tube. BNP remained stable in EDTA/glass and EDTA/PET tubes at room temperature for 4 h. BNP recovery rates in heparin/glass, EDTA/glass, and EDTA/PET tubes were 77.46, 86.04, and 88.23%, respectively.
CONCLUSIONS: Plasma in EDTA/glass and EDTA/PET tubes is suitable for BNP measurement on the Mindray CL-6000i.
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