alexa A Study on Effect of Lipemia on Electrolyte Measurement by Direct Ion selective Electrode Method
ISSN: 2167-7956

Journal of Biomolecular Research & Therapeutics
Open Access

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Research Article

A Study on Effect of Lipemia on Electrolyte Measurement by Direct Ion selective Electrode Method

Susruta Sen1*, Pramit Ghosh2, Ghosh TK1, Mandrita Das1 and Shreyoshi Das1

1Department of Laboratory Medicine, The Calcutta Medical Research Institute, 7/2 Diamond Harbour Road, Kolkata-700027, India

2Community Medicine, Medical College, Kolkata, 88-College Street, Kolkata-700073, India

*Corresponding Author:
Susruta Sen
Consultant, Department of Laboratory Medicine
The Calcutta Medical Research Institute
7/2 Diamond Harbour Road, Kolkata-700027, India
E-mail: [email protected]

Received date: May 02, 2016; Accepted date: May 21, 2016; Published date: May 30, 2016

Citation: Sen S, Ghosh P, Ghosh TK, Das M, Das S (2016) A Study on Effect of Lipemia on Electrolyte Measurement by Direct Ion Selective Electrode Method. J Biomol Res Ther 5:142. doi:10.4172/2167-7956.1000142

Copyright: © 2016 Sen S. This is an open-access article distributed under the terms of the Creative Commons Attribution License, which permits unrestricted use, distribution, and reproduction in any medium, provided the original author and source are credited.




Background: Lipemia affects electrolyte concentration obtained by indirect ion selective electrode (ISE) method, but the specific influence on measurements by direct ion selective electrode method is yet to be clearly understood. A study was designed in this backdrop to assess possible role of escalating concentration of lipemia on electrolyte measurement by direct ISE.

Methods: Samples were collected from selected subjects in a hospital setting. A predesigned pretested format was used for recording the data from each subject. Serum sample was divided into 5 aliquots. Except for one, in the rest four, intralipid was added in escalating concentration to induce lipemia. The 5 sub-samples were tested for electrolytes and lipid concentration in parallel by two different direct ion-selective electrode methods, namely VITROS250 & HDC-Lyte. Electrolytes like sodium & potassium concentration was measured by both, while the first one also measured triglyceride concentration.

Result: Results from two instruments were compared and data were also analsyed in subgroups of standard clinical classification for sodium concentration. Considering 0-350 mg% of triglyceride as the reference, electrolytes concentration mostly decreased over increasing lipemia. Beyond triglyceride concentration of 650mg%, this decline in electrolytes concentration was statistically significantly for samples in all subgroups. In majority of samples, electrolyte values obtained from two instruments were comparable. Beyond triglyceride concentration of 1550 mg%, the sodium concentration obtained from two instruments varied significantly.

Conclusion: A correction factor may be used for the amendment of this interference property of lipemic serum samples for the major electrolytes i.e., sodium and potassium.


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