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EVALUATING A GLUCOMETER’S PERFORMANCE BY TESTING ITS RELIABILITY AND VALIDITY AT THEARMED FORCES HOSPITAL JAZAN, SAUDI ARABIA
Ahmed Mohammed Dighriri*, Essa Mohammad Jammali, Hassan AliAbdelwahid, Saud Mohammad Erwi, Ahmad Ali Daghriri and Raed Mohammad Tumyhi
Background: Glucometers are small, fast, and easy to operate devices used to monitor hypoglycemic and hyperglycemic disorders. Glucometer accuracy is influenced by multiple factors, and quality control tests can be used to ensure proper glucometer functioning, matching the glucometer’s readings with those of a reference chemistry laboratory analyzer. Objective: To evaluate the performance of a glucometer used in Armed Forces Hospital Jazan (AFHJ) in the hands of trained operators under optimal operating conditions. Method: This analytical cross-sectional study was conducted at Armed Forces Hospital, Jazan (AFHJ), Kingdom of Saudi Arabia (KSA) on August 2021. Fingertip capillary blood and extracted blood from 200 randomly selected adult participants(age was >18 years) were tested using a glucometer (ONE TOUCH Select Plus Flex) and a reference chemistry analyzer (Cobas e 501, Roche). Results: The coefficient of variation(CV) of the first glucometer fingertip glucose readings (CV = 35.34) was similar to that of the second glucometer fingertip glucose readings (CV= 35.33). Approximately87% of the first glucometer readings were within ±15 mg/dl of the reference value for glucose concentrations below 100 mg/dl. Around98% of the results were within ±15% of the reference value for glucose concentrations 100 mg/dl or higher. Conclusion: The assay of capillary blood glucose by the ONE TOUCH Select Plus Flex had high precision for all glucose levels and high accuracy for those with high glucose levels (?100 mg/dl).[Full Text Article]