Dexcom SEVEN User Manual page 126

NUMBER OF READINGS PROVIDED
The Seven System is capable of providing a reading every 5 minutes, or 288 readings
per day. For a variety of reasons, this does not always happen. Sometimes sensors fail to
provide readings after calibration and readings are "skipped." Table 12, below, estimates
the number of readings you can expect to receive from the Seven System over the entire
7-day period. For example, 69% of Seven System devices provided between 1,537 and
1,992 readings.
table 12. number of readings provided by each Sensor over 7-Days
% of Total Possible Readings
Provided
0-25%
26-50%
51-75%
76-100%
Approximately 7% of readings were lost because the Transmitter was more than 5 feet
away from the Receiver. Other readings were lost because the Seven System detected
signal problems and therefore did not display a reading. The average amount of time a
subject went without getting readings was about 15 minutes (or there was a data gap of
three readings in a row).
122 | SEVEN CONTINUOUS GLUCOSE MONITORING SYSTEM
™
Total Readings Provided
5-504
654-974
1039-1494
1537-1992
% of Seven System Devices Providing
that number of readings
12%
6%
12%
69%