An Evaluation of Blood Glucose Measurement Using
TRUEresult Blood Glucose Monitoring System
Suranut Charoensri MD*, Samrit Khahmahpahte MSc**,
Kaewjai Thepsuthammarat MSc***, Chatlert Pongchaiyakul MD*
Affiliation :
* Division of Endocrinology and Metabolism, Department of Medicine, Faculty of Medicine,
Khon Kaen University, Khon Kaen, Thailand
** Clinical Chemistry Unit, Srinagarind Hospital, Khon Kaen University, Khon Kaen, Thailand
*** Academic Clinical Research Office and Clinical Epidemiology Unit, Faculty of Medicine,
Khon Kaen University, Khon Kaen, Thailand
Background : Point of care testing using glucose meters that measure capillary blood are the most popular and widely used
method for the routine monitoring of blood glucose level. TRUEresult is one of such commonly used blood glucose measuring
tools with high accuracy and precision profile according to the manufacturer’s data.
Objective : To evaluate the performance of TRUEresult in real life practice by examining the agreement between capillary
and venous glucose result using TRUEresult and a laboratory plasma glucose.
Material and Method: The present study is a cross sectional analytical study. All the data were collected from the patients
whose blood samples were drawn for the measurement of plasma glucose at the outpatient department of Srinagarind
Hospital, Khon Kaen University, Thailand. TRUEresult blood glucose monitoring system was used to perform blood glucose
measurement in whole blood samples from capillary and veins. This was compared with plasma glucose result from the
automated analyzer in the central laboratory, which was considered as reference method at Srinagarind Hospital.
Results : The ISO 15197:2013 criteria was used to determine technical accuracy of the TRUEresult tool. Blood glucose
levels in whole blood sample from capillary and veins, as measured using the TRUEresult, were 88.24% and 92.16% of
the acceptable bias limits. This is below the minimal acceptable criteria. When Parkes error grid analysis was used to define
the significance in clinical decision, all the errors of blood glucose levels measured using the TRUEresult were within
zone A and zone B, meaning that the errors have no or little influence on clinical decision.
Conclusion : The blood glucose levels in whole blood from capillary and veins measured using TRUEresult blood glucose
monitoring was within acceptable accuracy limit. The observed error had no or little influence on clinical decision.
Keywords : Evaluation, Blood glucose measurement, TRUEresult
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