The customer stated that the touch screen of the coaguchek xs plus meter responds incorrectly.When the day is selected upon input, the month is set instead.The meter was provided for investigation.Touch screen functionality was tested.It was determined that there was an x/y offset of touch on the "tft display".An imprecise touch screen was detected.The display issue may lead to a wrong input of a date or patient identifier.Patient results are displayed correctly, but may potentially be linked to a wrong patient identifier.The issue was determined to be a non systematic error.No adverse events occurred.
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