Abstract
Diabetes mellitus is a metabolic disorder of various etiologies, characterized by impairment of insulin secretion and action. This results in hyperglycemia and a number of clinical manifestations and serious complications. Identification and understanding of the specific etiology of an individual’s diabetes is important as it guides treatment decisions. Diabetes is often diagnosed in the absence of classic symptoms, and thus the diagnosis is heavily reliant on biochemical measures. Over the years, there have been numerous changes in the classification of diabetes as well as the criteria and methods for diagnosis. As new data have become available and assay methodologies have been updated, diagnostic thresholds have been altered. In recent years, hemoglobin A1c has also been adopted as an alternate diagnostic measure to plasma glucose levels for type 2 diabetes. There have also been advances in gene and autoantibody testing for the determination of diabetes type. This chapter reviews the different types of diabetes and the laboratory measures and associated criteria used for diagnosis.
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Abbreviations
- 2hPG:
-
2-hour plasma glucose
- ADA:
-
American Diabetes Association
- BMI:
-
Body mass index
- DKA:
-
Diabetic ketoacidosis
- DM:
-
Diabetes mellitus
- FPG:
-
Fasting plasma glucose
- GAD :
-
Glutamic acid decarboxylase
- GDM:
-
Gestational diabetes mellitus
- HbA1c:
-
Hemoglobin A1c
- IADPSG:
-
International Association of Diabetes and Pregnancy Study Groups
- ICA:
-
Islet cell antibody
- IFG:
-
Impaired fasting glycemia
- IGT:
-
Impaired glucose tolerance
- LADA:
-
Latent autoimmune diabetes of adulthood
- MODY:
-
Maturity-onset diabetes of the young
- OGTT:
-
Oral glucose tolerance test
- WHO:
-
World Health Organization
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Hare, M.J.L., Topliss, D.J. (2022). Classification and Laboratory Diagnosis of Diabetes Mellitus. In: Bandeira, F., Gharib, H., Griz, L., Faria, M. (eds) Endocrinology and Diabetes. Springer, Cham. https://doi.org/10.1007/978-3-030-90684-9_28
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DOI: https://doi.org/10.1007/978-3-030-90684-9_28
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