Johns Hopkins Diabetes GuideManagementPrediabetes

Prediabetes or Categories of Increased Risk for Diabetes 

Clare J. Lee, M.D., MHS, Rachel Derr, M.D.
Prediabetes or Categories of Increased Risk for Diabetes  is a topic covered in the Johns Hopkins Diabetes Guide.

To view the entire topic, please or purchase a subscription.

Official website of the Johns Hopkins Antibiotic (ABX), HIV, Diabetes, and Psychiatry Guides, powered by Unbound Medicine. Johns Hopkins Guide App for iOS, iPhone, iPad, and Android included. Explore these free sample topics:

Johns Hopkins Guides

-- The first section of this topic is shown below --

DEFINITION

  • Isolated impaired fasting glucose (IFG) and isolated impaired glucose tolerance (IGT) are intermediate states of abnormal glucose homeostasis between normal and overt diabetes.
  • Prediabetes is an unofficial designation including either IFG, IGT or both.
  • Documentation of IFG requires only a fasting plasma glucose. Documentation of IGT requires a 75-gm oral glucose tolerance test.
  • A hemoglobin A1c of 5.7 - 6.4% identifies individuals in "categories of high risk for diabetes" to whom the term "prediabetes" may be applied (ADA Standards of Medical Care in Diabetes)[4].
  • See Table Table 1 for exact definitions.
Table 1


State


Fasting Glucose (mg/dl)

2 hour Glucose (mg/dl) during a
75g OGTT


A1c (%)

Normal

< 100

< 140

< 5.7

Isolated Impaired Fasting Glucose*

100-125

< 140

-

Isolated Impaired Glucose Tolerance

< 100

140-199

-

Combined IFG and IGT

100-125

140-199

-

Prediabetes or Categories of Increased Risk**

100-125

140-199

5.7 - 6.4

Diabetes**

≥ 126

≥ 200

>6.5



* The WHO and IDF recommend that Impaired Fasting Glucose be 110-125 mg/dl
**At least one criteria needs to be satisfied for diagnosis

-- To view the remaining sections of this topic, please or purchase a subscription --

Last updated: January 5, 2017

Citation

TY - ELEC T1 - Prediabetes or Categories of Increased Risk for Diabetes  ID - 547125 A1 - Lee,Clare,M.D., MHS AU - Derr,Rachel,M.D. Y1 - 2017/01/05/ PB - Johns Hopkins Diabetes Guide UR - https://www.unboundmedicine.com/medline/view/Johns_Hopkins_Diabetes_Guide/547125/all/Prediabetes_or_Categories_of_Increased_Risk_for_Diabetes  ER -