COMPARISION BETWEEN BED SIDE TESTING OF BLOOD GLUCOSE BY GLUCOMETER Vs CENTRALIZED TESTING IN A TERTIARY CARE HOSPITAL
AbstractBackground: To determine the accuracy, turnaround time and cost effectiveness of bedsidemonitoring of blood glucose levels by non–laboratory health care workers and centralized testingof blood glucose by automated analyzer in a tertiary care hospital. Methods: The study wasconducted in Section of Chemical Pathology, Department of Pathology and Microbiology andSection of Endocrinology Department of Medicine, Aga Khan University and Hospital Karachi,from April 2005 to March 2006.One hundred and ten patients were included in the study. Theblood glucose levels were analyzed on glucometer (Precision Abbott) by finger stick, usingBiosensor Technology. At the same time venous blood was obtained to analyze glucose in clinicallaboratory on automated analyzer (SYNCHRON CX7) by glucose oxidase method. Results: Weobserved good correlation between bed side glucometer and laboratory automated analyzer forglucose values between 3.3 mmol/L (60 mg/dl) and 16.7 (300 mg/dl). A significant difference wasobserved for glucose values less than 3.3 mmol/L (p=0.002) and glucose values more than 16.67mmol/l (p= 0.049). Mean Turnaround time for glucometer and automated analyzer were 0.08hours and 2.49 hours respectively. The cost of glucose testing with glucometer was 48.8% lowerthan centralized lab based testing. Conclusion: Bedside glucometer testing, though less expensivedoes not have good accuracy in acutely ill patient with either very high or very low blood glucoselevels.Key words: Bed side testing; Glucometer; Centralized glucose testing
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