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A Comparison of Reagent Test Strip-photometer and Laboratory Plasma Glucose Values in Newborns

Journal of the Korean Pediatric Society 1992;35(8):1501-1058.
Published online August 15, 1992.
A Comparison of Reagent Test Strip-photometer and Laboratory Plasma Glucose Values in Newborns
Jin Kyung Kim, Myung Chul Hyun, Sang Bum Lee, Heng Mi Kim
Department of Pediatrics, Kyungpook National University, College of Medicine, Taegu, Korea
신생아에 있어서 Reagent Test Strip-photometer법으로 측정한 혈당과 검사실 혈당의 비교
김진영, 현명철, 이상범, 김행미
경북대학교 의과대학 소아과학교실
Abstract
Although reagent test strip-photometer method is frequently used to estimate plasma glucose values in nurseries, the accuracy in newborns have not been evaluated previously. In this study values of 44 samples of laboratory glucose were compared with values simultaneously obtained by reagent test strip-photometer. Laboratory values were determined by glucose oxidase method using veous plasma. Reagent test strip-photometer values were determined by GLUCOPAD and GLUCOSTATTM CT-4310 (DAIICH, KYOTO, JAPAN) using venous whole blood and plasma, capillary whole blood and plasma. Of 44 glucose determination the mean laboratory value was 97.40¡¾66.5 mg/dl. Four values by strip-photometer were compared with laboratory values: Venous whole blood (r=0.830), venous plasma (r=0.660), capillary whole blood (r=0.842), capillary plasma (r=0.674). The venous and capillary whole blood values obtained by strip-photometer were overestimated (p<0.001). The correlation coefficient of capillary whole blood values for venous whole blood values were 0.868. These data suggest that plasma is unsuitable specimen for strip-photometer and that screening of hypoglycemic newborns by strip-photometerrquires optimal screening threshold in consideration of difference between values obtained by strip-photometer and laboratory analysis.
Key Words: Hypoglycemia, Newborn, Reagent test strip-photometer


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