Freestyle Libre 14 day In-Service Manual page 20

HI/LO Reading
Current Glucose will display HI or LO when glucose readings are outside measuring range.
Low Glucose
LO
350
250
150
50
2pm
Sensor Readings
DISPLAY
High Glucose
HI
mg
dL
350
250
150
50
2pm 6pm
6pm 10pm
WHAT TO DO
If LO appears on the reader, your reading is lower
than 40 mg/dL. If HI appears on the reader, your
reading is higher than 500 mg/dL. You can touch
the message button for more information. Check
your blood glucose on your fi nger with a test
mg
strip. If you get a second LO or HI result, contact
dL
your healthcare professional immediately.
You will see this symbol
glucose on your fi nger with a test strip before
making treatment decisions.
10pm
. Check your blood