Indian Journal of Critical Care Medicine
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LETTER TO THE EDITOR
Year : 2011  |  Volume : 15  |  Issue : 3  |  Page : 196

Electrolytes assessed by point-of-care testing


Wiwanitkit House, Bangkhae, Bangkok, Thailand

Date of Web Publication14-Sep-2011

Correspondence Address:
Viroj Wiwanitkit
Wiwanitkit House, Bangkhae, Bangkok, 10330
Thailand
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DOI: 10.4103/0972-5229.84890

PMID: 22013320

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How to cite this article:
Wiwanitkit V. Electrolytes assessed by point-of-care testing. Indian J Crit Care Med 2011;15:196

How to cite this URL:
Wiwanitkit V. Electrolytes assessed by point-of-care testing. Indian J Crit Care Med [serial online] 2011 [cited 2014 Apr 19];15:196. Available from: http://www.ijccm.org/text.asp?2011/15/3/196/84890


Sir,

I read the recent publication on electrolytes assessed by point-of-care testing (POCT) in sepsis with great interest. [1] Chacko et al. concluded, "Clinicians should be aware of the difference between whole blood and serum electrolytes, particularly when urgent samples are tested at point of care and routine follow-up electrolytes are sent to the central laboratory" and "A correction factor needs to be determined at each center". [1] Indeed, the result in this work can be expected. Two samples that are processed at different time intervals can usually have different laboratory data. To compare between two analyzers, the data on the quality control and the reference range of the two systems have to be presented. These are the basic things in laboratory medicine that can result in difference of data from two analyzers. Finally, I would like to make a comment on the suggestion to find the correction factor. This needs a clarification as such correction factor might be usable only if the same kinds of specimens are used. In case venous blood specimen is used for analysis in central laboratory and arterial blood is used for analysis by POCT tool, it should be corrected.

 
 » References Top

1.Chacko B, Peter JV, Patole S, Fleming JJ, Selvakumar R. Electrolytes assessed by point-of-care testing - Are the values comparable with results obtained from the central laboratory? Indian J Crit Care Med 2011;15:24-9.  Back to cited text no. 1
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Chacko, B., Peter, J., Patole, S., Fleming, J., Selvakumar, R.
Indian Journal of Critical Care Medicine. 2011; 15(3): 196-197
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