Hypoglycemia : Normal blood sugar (glucose) should be 70 to 100 mg/dL or 3.9 when fasting. It is best tested with a finger stick glucose meter, not through blood tests going to the lab. Lab blood tests are not accurate because as the blood sits around the red blood cells use the glucose in the blood and thereby lower it. So, if a finger stick is lower than 70 the person is technically hypoglycemic.
Answered 7/17/2019
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