CDCES Prediabetes and Diabetes Prevention

Question 1

Which A1C range meets the ADA criteria for prediabetes?

Accepted Answer

5.7–6.4%

Answer

ADA defines prediabetes as an A1C of 5.7–6.4%. An A1C of 6.5% or higher on repeat testing meets the criteria for diabetes.

Question 2

A fasting plasma glucose of 112 mg/dL is classified as which of the following?

Accepted Answer

Impaired fasting glucose

Answer

Impaired fasting glucose is a fasting plasma glucose of 100–125 mg/dL. Impaired glucose tolerance refers to a 2-hour OGTT value of 140–199 mg/dL. A fasting value of 126 mg/dL or higher indicates diabetes.

Question 3

The Diabetes Prevention Program lifestyle intervention targeted which combination of goals?

Accepted Answer

At least 7% weight loss and 150 minutes of moderate activity per week

Answer

The DPP lifestyle program aimed for at least 7% body weight loss and at least 150 minutes per week of moderate-intensity physical activity, such as brisk walking.

Question 4

In the original Diabetes Prevention Program trial, by approximately how much did intensive lifestyle intervention reduce the progression to type 2 diabetes compared with placebo?

Accepted Answer

About 58%

Answer

Lifestyle intervention reduced the incidence of diabetes by 58% over about 3 years, compared with a 31% reduction with metformin. Lifestyle was therefore more effective than metformin overall.

Question 5

Metformin for diabetes prevention is most strongly considered in which person with prediabetes?

Accepted Answer

A 45-year-old with a BMI of 36 and a history of gestational diabetes

Answer

ADA suggests considering metformin for people with prediabetes who are younger than 60, have a BMI of 35 or higher, or have a history of GDM. These groups showed the greatest benefit in the DPP.

(CDCES) Certified Diabetes Care and Education Specialist Practice Test

(CDCES) Certified Diabetes Care and Education Specialist Practice Test

CDCES Prediabetes and Diabetes Prevention