Diagnosing Diabetes
Random Blood Sugar
Blood blood sugar > 200 mg/dl
Glucose tolerance test
Blood sugar > 200mg/dl after ingesting 75 grams of glucose in water. Patient must be NPO. Glucose is taken before ingesting glucose and 2-3 times every 60 minutes.
Fasting Blood Sugar
Blood sugar > 126 mg/dl after fasting x 8 hours
Hemoglobin A1C
Measures what percentage of hemoglobin proteins are coated with sugar (glycated). Measures how well-controlled glucose levels have been over last 2-3 MONTHS.