18
BLOOD GLUCOSE TESTING
Interpreting unexpected results
Refer to the following cautions when your results are higher or
lower than what you expect.
CAUTION:
Low results
If your result is below 70mg/dL
or is shown as LO (meaning the
result is less than 20mg/dL), it
may mean hypoglycaemia (low
blood glucose). This may require
immediate treatment according
to your healthcare professional's
recommendations. Although this result could be due to a test
error, it is safer to treat first, then do another test.
CAUTION:
Dehydration and low results
You may get false low results if you are severely dehydrated. If
you think you are severely dehydrated, contact your healthcare
professional immediately.
• HI is displayed when your result
is over 600mg/dL. You may have
severe hyperglycaemia (very
high blood glucose). Re-test your
blood glucose level. If the result
is HI again, this indicates a severe
problem with your blood glucose
control. Obtain and follow instructions from your healthcare
professional immediately.
CAUTION:
High results
• If your result is above 179mg/dL, it may mean hyperglycaemia
(high blood glucose) and you should consider re-testing. Talk
to your healthcare professional if you are concerned about
hyperglycaemia.