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LO and HI Readings

Important: Low or high blood glucose readings can indicate a potentially serious medical condition. The FreeStyle Lite® meter displays results from 20 to 500 mg/dL.
 
LO Reading
            (Click for a Larger Image)
  If your test result is lower than 20 mg/dL, LO will appear on the meter display screen. This reading indicates severe hypoglycemia (low blood glucose).
 
LO Reading with Symptoms
If you have a LO reading and have symptoms such as weakness, sweating, nervousness, headache or confusion, then follow your doctor’s recommendation to treat hypoglycemia.
 
LO Reading without Symptoms
If you get a LO reading, but have no symptoms of low blood glucose, then retest with a new test strip on your fingers. If you still get a LO reading, perform a control solution test to ensure your system is functioning properly. If the system is functioning properly follow your doctor’s recommendation to treat hypoglycemia.
 
HI Reading

            (Click for a Larger Image)
  If your test is above 500 mg/dL, HI will appear on the display screen. This indicates severe hyperglycemia (high blood glucose).
 
 HI Reading with Symptoms
If you feel symptoms such as fatigue, thirst, excess urination, or blurry vision, then follow your doctor’s recommendation to treat hyperglycemia.
 
HI Reading without Symptoms
If you get a HI reading, but have no symptoms of high blood glucose, then retest with a new test strip on your fingers. If you still get a HI reading, perform a control solution test to ensure your system is functioning properly. If the system is functioning properly follow your doctor’s recommendation to treat hyperglycemia.

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