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It is important to know that the transmitter and sensor must be removed before MRI, CT scan or diathermy treatment and if medications with acetaminophen is in use while wearing the Dexcom G5, glucose readings may falsely raise (Dexcom 2017).
For proper user safety, the equipment must always be in good condition and the system must be calibrated every 12 hours by using a fingertip blood sample. The system will start show glucose values only after 2 hours from startup. If the system does not show glucose values, user must always take fingertip blood sample and make the treatment decision according to that value. User must also never ignore high or low glucose symptoms despite that the system shows normal glucose values. The system has not been tested with pregnant women and with persons in dialysis so the glucose readings may be inaccurate. (Dexcom 2017.)
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