| Clinical Usefulness of Point-of-care Test Chemistry Analyzer in Neonatal Intensive Care Unit. |
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Yeong Uk Jang, Su Nam Kim, Hye Jung Cho, Yong Han Sun, So Yeon Shim, Dong Woo Son, Pil Whan Park |
1Department of Pediatrics, Graduate School of Medicine, Gachon University of Medicine and Science, Incheon, Korea. sondw@gilhospital.com
2Department of Laboratory Medicine, Graduate School of Medicine, Gachon University of Medicine and Science, Incheon, Korea. |
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| Abstract |
PURPOSE
Point-of-care tests (POCTs) have the potential to significantly influence management of neonates. The aim of this study was to assess the clinical usefulness of the POCT chemistry analyzer in a neonatal intensive care unit (NICU).
METHODS
Blood samples of neonates admitted to the NICU were tested using a POCT chemistry analyzer (Piccolo Xpress Chemistry Analyzer, Abaxis, Union City, CA, USA) and a central laboratory chemical analyzer (Chemistry analyzer 7600-110, Hitachi Ltd., Tokyo, Japan) from March to September, 2010. Correlation of 15 analytes between the POCT and the central laboratory machine was evaluated. For consistency of the POCT, three consecutive samplings were performed. Differences among the three tests were recorded.
The causes of performance errors were checked through log files.
RESULTS
One hundred of 112 pairs of tests for accuracy performed in 54 neonates showed a high correlation between the two machines. Twelve performance errors occurred during the 112 tests. The most common error was insufficient sample error. Eighteen triplet tests performed in 18 patients for consistency revealed a difference range of 3-10%, which was considered to be acceptable. No error occurred during the 54 tests.
CONCLUSION
The POCT is capable of analyzing multiple analytes with a minimal amount of whole blood in a short time. The few performance errors noted presently are likely preventable. This POCT is concluded to be suitable for use as a simple and rapid diagnostic method in the NICU with a minimal amount of blood collected in a less invasive manner. |
| Key Words:
Point-of-care systems; Analytic chemistry techniques; Neonatal intensive care units |
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