What is the role of plasma glucose concentration in the diagnosis of type 1 diabetes mellitus (DM)?

Updated: Sep 13, 2019
  • Author: Romesh Khardori, MD, PhD, FACP; Chief Editor: George T Griffing, MD  more...
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Answer

Patients with type 1 diabetes mellitus (DM) typically present with symptoms of uncontrolled hyperglycemia (eg, polyuria, polydipsia, polyphagia). In such cases, the diagnosis of DM can be confirmed with a random (nonfasting) plasma glucose concentration of 200 mg/dL or a fasting plasma glucose concentration of 126 mg/dL (6.99 mmol/L) or higher. [2, 66]


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