A result of "HI" on a glucose check indicates what?

A result of "HI" on a glucose check signifies that the glucose level has exceeded the highest measurable limit of the device being used, typically indicating values above 500 or 600 mg/dL. This suggests a severe hyperglycemic state, which may indicate uncontrolled diabetes or a possible diabetic crisis. Such high levels of glucose can lead to serious complications, including diabetic ketoacidosis or hyperosmolar hyperglycemic state, both of which require immediate medical attention.

In contrast, a normal glucose level would fall well below the measurement threshold that leads to a result of "HI." Similarly, a dangerously low glucose level would be indicated by the device showing hypoglycemic states rather than an "HI" reading. Therefore, the interpretation of an "HI" reading directly relates to significantly elevated glucose levels.