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Suspected device evaluated by ok biotech and calculated that the meter operated within specifications.Ok biotech tested the standby current of returned meter, the result was 0.9¿a.The criteria is <55¿a.Pass.Meter setting, audio and all buttons function are ok.We tested the suspected meter with in house control solution and in house strips (strip lot number: d180315-1).The control solution tests for level low were 61/62 mg/dl, for level high were 261/256 mg/dl.The request control solution ranges are: level low 30~80 mg/dl; level high 190~290 mg/dl.All results were within the acceptance range.Pass.Patient's strips lot# d161007-2 was manufactured on oct.07, 2016 and expired in oct.2018.Patient used expired strips to test blood which might caused or contributed to error readings.User issue.
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