Diabetes Type 2 Diagnosis
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Symptoms like increased thirst, frequent urination, reoccurring infections can often be indications of diabetes. However, a formal diagnosis of diabetes is through having a fasting lab blood glucose level over 126 mg/dL; or a random lab blood glucose over 200 mg/dL with symptoms of high blood glucose such as increased thirst,frequent urination, reoccuring infections; or a hemoglobin A1c lab value greater than 6.5%.
A diagnosis of prediabetes is a fasting blood glucose of 100 mg/dL - 125 mg/dL.
Fonseca, V.A. (2006). Clinical Diabetes: Translating Research into Practice. Philidelphia: Saunders.