Table 1.

Causes of Inaccurate CGM Readings Attributed to User Errors.

1.  Use in patients less than 2 years old

2.  Insertion of sensor in unapproved site: arms, buttocks, back, thigh

3.  Pediatric patient using a receiver approved for adults; and vice versa

4.  Use in pregnancy

5.  Using transmitter past expiration date

6.  Using sensor past expiration date

7.  Use of device while taking medications containing acetaminophen

8.  Improper insertion of transmitter.

9.  Calibration while error symbol is displayed

10.  Calibration during a rapid change in glucose, ie, rise or fall >2 mg/dl/minute

11.  Calibration using a meter to calibrate that is different from the meter used to measure glucose

12.  Calibration using of alternative blood glucose testing sites other than fingertips

13.  Delay of greater than 5 minutes in entering calibration values

14.  Entering calibration values outside the 40-400 mg/dl range

15.  Calibrating less often that every 12 hours

16.  NOT calibrating after experiencing inaccuracies

Source: MAUDE Database.