Dexcom was made aware on (b)(4) 2017, that on (b)(6) 2017, there was an inaccuracy between the continuous glucose monitor (cgm) and the blood glucose (bg) meter.The sensor was inserted at the abdomen on (b)(6) 2017.Reportedly, the patient used an expired sensor.No additional event or patient information is available.No data was provided for evaluation.The reported inaccuracy could not be confirmed.A root cause could not be determined.Labeling indicates: do not insert sensors past the expiration date.The expiration date format is yyyy-mm-dd.Insert sensors on or before the end of the calendar day printed on the sensor package label.
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