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“HI” and “LO” Messages
The meter can accurately measure blood glucose concentrations between
20 to 600 mg/dL. “HI” and “LO” messages indicate results outside of this
range.
If “HI” appears on the display, the measured concentration value is above
600 mg/dL. The test should be retaken to ensure that no mistake was made
in the procedure. If you are certain the meter is functioning properly and no
mistakes were made in the procedure, and your patient’s blood glucose is
still consistently measured as “HI”, it indicates severe hyperglycemia (high
blood glucose). You should contact the treating physician immediately or
follow your institution’s guidelines.
If “LO” appears on the display, the measured concentration value is below
20 mg/dL. The test should be retaken to ensure that no mistake was made
in the procedure. If you are certain the meter is functioning properly and no
mistakes were made in the procedure, and your patient’s blood glucose is
still consistently measured as “LO”, it may indicate severe hypoglycemia (low
blood glucose). You should follow your institution’s guidelines for hypoglyce-
mia immediately or those recommended by the treating physician.
“Hypo” and “Hyper” Messages
If “Hypo” appears on the display, the measured concentration value is below
the “Hypo” (low blood sugar) target level that you have set.
