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

Updated: Oct 08, 2021
  • Author: Romesh Khardori, MD, PhD, FACP; Chief Editor: George T Griffing, MD  more...
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A fingerstick glucose test is appropriate in the emergency department (ED) for virtually all patients with diabetes. All fingerstick capillary glucose levels must be confirmed in serum or plasma to make the diagnosis. All other laboratory studies should be selected or omitted on the basis of the individual clinical situation. Intravenous (IV) glucose testing may be considered for possible early detection of subclinical diabetes.

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