Kjaergaard et al. 621 Funding The author(s) received no ﬁnancial support for the research, authorship, and/ or publication of this article. Ethical approval The study was performed as a fully anonymized quality assurance study and does not as such require patient approval. ORCID iD Alisa D Kjaergaard http://orcid.org/0000-0003-3899-1324 Reference 1. Averina M and Jakobsen R. Stability of ionized calcium measurements at concentrations less than 0.3 mmol/L by point-of-care blood gas instru- ments: application for postﬁlter calcium quality control in patients with citrate anticoagulation during extracorporeal circulation. Ann Clin Biochem 2017; 54: 398–401. 1 2 Alisa D Kjaergaard , Mads H Andersen and 2þ Søren A Ladefoged Figure 2. Postfilter iCa measurements by two ABL800 blood gas analysers. Department of Clinical Biochemistry, Aarhus The size of circles reflects the number of observations (1, 2 or 3) University Hospital, Aarhus N, Denmark for each set of measurements. Intensive Care Unit, Department of Anesthesiology, Aarhus University Hospital, Aarhus N, Denmark Department of Clinical Biochemistry, Aarhus measured on average 4.7% (0.017 mmol/L) and maxi- 2þ University Hospital, Aarhus N, Denmark mally 11% (0.04 mmol/L) higher iCa than analyser with newer membrane (Figure 2). Importantly, this was Corresponding author: 2þ independent from iCa ,
Annals of Clinical Biochemistry: An International Journal of Biochemistry and Laboratory Medicine – SAGE
Published: Sep 1, 2018
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