KMID : 1100820130030030138
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Laboratory Medicine Online 2013 Volume.3 No. 3 p.138 ~ p.144
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Evaluation of the Performance of LABGEO PT Hepatic Test 9
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Jeong Tae-Dong
Kang Hyun-Jung Kim Min-Sook Kim So-Young Lee Woo-Chang Chun Sa-Il Min Won-Ki
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Abstract
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Background: The Samsung LABGEO PT Hepatic Test 9 (Samsung electronics, Korea) was developed as a point-of-care (POC) testing device. The levels of 9 analytes, namely, albumin, AST, ALT, alkaline phosphatase, gamma-glutamyl transferase, glucose, total bilirubin, direct bilirubin, and total protein, could be evaluated simultaneously by using 70 ¥ìL of whole blood, plasma, or serum samples. In this study, we assessed the performance of the Samsung LABGEO PT Hepatic Test 9.
Methods: The precision and linearity of the test were evaluated according to the CLSI EP5-A2 and CLSI EP6-A guidelines, respectively. Correlational analyses between Samsung LABGEO PT Hepatic Test 9 and Cobas 8000 modular analyzer (Roche, Switzerland) were carried out as per the CLSI EP9-A2 guidelines. Additionally, the results between 3 different specimen types, whole blood, plasma, and serum samples obtained from the same individual were compared to evaluate the matrix effect.
Results: The total imprecision at both low and high levels of the 9 analytes was within 10% and in the clinically important concentration range for all test items, all obtained results were linear. We compared the above results with those obtained using Cobas 8000 and a good correlation was observed with a correlation coefficient of more than 0.975 for all 9 analytes. Simple linear regression analyses between the 3 different specimen types indicated that there was no statistically significant difference (P<0.001).
Conclusions: The Samsung LABGEO PT Hepatic Test 9 showed good precision and linearity when compared to established assays for 9 clinical test items and could be useful in cases where the POC testing is required.
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KEYWORD
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Samsung LABGEO PT Hepatic Test 9, Precision, Linearity, Method comparison, Specimen type
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