Phlebotomy tube interference with nuclear magnetic resonance (NMR) lipoprotein subclass analysis. Clin Chim Acta 2019 Jan;488:235-241
Date
11/12/2018Pubmed ID
30414827DOI
10.1016/j.cca.2018.11.010Scopus ID
2-s2.0-85056839464 (requires institutional sign-in at Scopus site) 2 CitationsAbstract
BACKGROUND: Lipoprotein subclass analysis by nuclear magnetic resonance (NMR) can be used in risk assessment of atherosclerotic cardiovascular disease (ASCVD). There is little information in the literature regarding phlebotomy tube interferences with NMR testing.
METHODS: Pooled human serum was exposed to phlebotomy tubes manufactured by Becton Dickinson (BD), Greiner Bio-One, or Sarstedt. Serum was analyzed on the Axinon lipoFIT by NMR assay and by conventional lipid assays performed on a Roche Cobas 8000 system. The effect of incomplete fill volume was also assessed.
RESULTS: Analytical interference in NMR lipoprotein subclass results was observed across many different tube types. The 5 mL Greiner Bio-One Z Serum Sep Clot Activator tube correlated the best with non-gel containing serum tubes from BD and Greiner Bio-One. BD Serum Separator Tubes (SSTs) displayed strong interferences across several NMR analytes that were enhanced with decreased tube fill volumes. Interferences were also observed with different sizes of Greiner Bio-One Z Serum Sep Clot Activator tubes. Interference was generally not observed with conventional lipid testing, although minor interference was found for some tubes with lipoprotein(a) [Lp(a)].
CONCLUSIONS: NMR lipoprotein subclass analysis should be standardized by both tube type and tube size to prevent risk of analytical interference.
Author List
Needham LL, Smy L, Lee MA, Kunzler TM, Genzen JRAuthor
Laura Smy PhD Assistant Professor in the Pathology department at Medical College of WisconsinMESH terms used to index this publication - Major topics in bold
HumansLipoproteins
Nuclear Magnetic Resonance, Biomolecular
Phlebotomy
