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 took medication containing acetaminophen.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: make sure you have not taken any medications containing acetaminophen (such as tylenol).Taking medications with acetaminophen (such as tylenol®) while wearing the sensor may falsely raise your sensor glucose readings.The level of inaccuracy depends on the amount of acetaminophen active in your body and may be different for each person.
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