Lifescan SureStep Blood Glucose Monitor Operator's Manual page 18

Introduction
HI Result
The meter reads HI in virtually all cases
when a result is greater than 500 mg/dL
(27.8 mmol/L).
IMPORTANT
When the result is greater than 500 mg/dL
and proper procedures are followed, the
meter will display HI in virtually all cases.
The confirmation dot will also be darker
than the 350-mg/dL sample color dot on the
test strip bottle Color Chart. This indicates
hyperglycemia. Follow your institution's
policies for treatment.
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