Hyperglycemia Alert Rate; Hyperglycemia Detection Rate - Dexcom G5 User Manual

Hyperglycemia Alert Rate

The Alert Rate shows how often the Alert is right or wrong. The True Alert Rate is the % of time the
device alarmed when the BG level was at or above the Alert setting within 15 or 30 minutes before or
after the device alarmed. The False Alert Rate is the % of time the device alarmed when the BG level
was below the Alert setting within 15 or 30 minutes before or after the device alarmed.
For example, if you set the High Glucose Alert to 200 mg/dL and your Alarm sounds, how often can
Software 505 Adult
you expect your blood sugar to actually be high? In the Study (Table 6-A), when
your Alarm sounds, you can expect your blood sugar to be at or above 200 mg/dL approximately 96%
of the time and not be above 200 mg/dL approximately 4% of the time within the 15 minute period
before or after your Alarm sounds.

Hyperglycemia Detection Rate

The Detection Rate shows how often the device recognizes and alerts you to an episode of
hyperglycemia or how often it misses such an event. The Hyperglycemia Detection Rate is the % of
time the BG level was at or above the Alert setting and the device alarmed within 15 or 30 minutes
before or after the BG was at or above the Alert settings. The Hyperglycemia Missed Detection Rate
is the % of time the BG was at or above the Alert setting, but the device did not Alarm within 15 or 30
minutes before or after the BG was at or above the Alert setting.
For example, if you set your High Glucose Alert to 200 mg/dL, how often will your Alarm alert you if
Software 505 Adult
your BG goes at or above 200 mg/dL? In the Study (Table 6-A), when your blood
sugar goes above 200 mg/dL, you can expect your Alarm to sound 98% of the time and not to sound
approximately 2% of time within the 15 minute period before or after your blood sugar goes above
200 mg/dL.
Dexcom G5 Mobile System User Guide
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