Free Certification Examination for Diabetes Care and Education Specialists Practice Questions

Sample Practice Questions

Try these 10 sample questions from the Certification Examination for Diabetes Care and Education Specialists practice bank. Each includes the answer and explanation. Continue with the interactive practice above to review the full question set.

1. 1A diabetes care and education specialist is explaining a new A1C result to an adult who asks what period of glucose exposure it reflects. Which period is represented?

   1. A. The preceding 24 hours
   2. B. The preceding 2 weeks
   3. C. The preceding 3 months
   4. D. The preceding 12 months

   Answer: C

   Explanation: The NIDDK states, "The A1C test is a blood test that provides information about your average levels of blood glucose, also called blood sugar, over the past 3 months." Thus this result summarizes roughly three months, not a shorter self-monitoring interval.

   Reference: The A1C Test & Diabetes — What is the A1C test?

2. 2A newly diagnosed person asks which pancreatic cells are attacked in autoimmune type 1 diabetes. Which cell type should the specialist identify?

   1. A. Pancreatic alpha cells
   2. B. Pancreatic beta cells
   3. C. Pancreatic delta cells
   4. D. Pancreatic acinar cells

   Answer: B

   Explanation: NIDDK states, "Type 1 diabetes develops when the body’s immune system destroys the cells in the pancreas that make insulin. These cells are called beta cells." Therefore the autoimmune target is the beta cell.

   Reference: Type 1 Diabetes — What causes type 1 diabetes?

3. 3During DSMES, a specialist and a person with diabetes set priorities for education after assessing the person's concerns. Under the current National Standards, which standard most directly governs this individualized, recurring planning process?

   1. A. Standard 2: population and service assessment
   2. B. Standard 3: DSMES team
   3. C. Standard 5: person-centered DSMES
   4. D. Standard 6: measuring and demonstrating outcomes

   Answer: C

   Explanation: CDC labels this requirement "Standard 5: person-centered DSMES" and says each plan is based on concerns, needs, and priorities determined collaboratively. The scenario is the person's plan, rather than a population assessment or service-wide evaluation.

   Reference: National Standards for Diabetes Self-Management Education and Support — Standard 5: person-centered DSMES

4. 4A specialist is reviewing whether an adult's fasting plasma glucose sample was collected after enough time without food for a reliable result. What is the minimum fasting period described by NIDDK?

   1. A. At least 6 hours
   2. B. At least 8 hours
   3. C. At least 10 hours
   4. D. At least 12 hours

   Answer: B

   Explanation: The NIDDK specifies that the test is given "after you have fasted for at least 8 hours." The question asks for the minimum, so longer fasting periods do not change the eight-hour threshold.

   Reference: Diabetes Tests & Diagnosis — What tests are used to diagnose diabetes? > Fasting plasma glucose test

5. 5An adult's glucose tests establish diabetes, but the care team needs evidence that the disease is autoimmune type 1 rather than another type. Which additional blood test directly addresses that classification question?

   1. A. Diabetes autoantibody testing
   2. B. Fasting plasma glucose testing
   3. C. Hemoglobin A1C testing
   4. D. Oral glucose tolerance testing

   Answer: A

   Explanation: NIDDK says, "To find out if your diabetes is type 1, your health care professional may test your blood for certain autoantibodies." The other options measure glycemia and can identify diabetes but do not directly establish its autoimmune type.

   Reference: Type 1 Diabetes — How do health care professionals diagnose type 1 diabetes? > Autoantibodies test

6. 6A DSMES team is assigning responsibility for tracking and reporting service outcomes under the current National Standards. Which designated team role oversees that work?

   1. A. The DSMES quality coordinator
   2. B. The National DPP Lifestyle Coach
   3. C. The referring physician
   4. D. The program billing specialist

   Answer: A

   Explanation: The CDC's Standard 3 specifies that "At least one team member will be identified as the DSMES quality coordinator" and assigns that person oversight of implementation and outcome tracking. The role is specific to the DSMES team.

   Reference: National Standards for Diabetes Self-Management Education and Support — Standard 3: DSMES team

7. 7An adult with prediabetes asks a specialist when testing for type 2 diabetes should be repeated if no new symptoms arise. Which interval does NIDDK recommend?

   1. A. Every 3 months
   2. B. Every 6 months
   3. C. Every 12 months
   4. D. Every 3 years

   Answer: C

   Explanation: NIDDK says, "Adults and children diagnosed with prediabetes should be tested for type 2 diabetes every year." For this adult, every 12 months is the annual interval; the three-year interval on the same page applies to normal test results.

   Reference: Diabetes Tests & Diagnosis — Who should be tested for diabetes? > Type 2 diabetes

8. 8When the diabetes type remains uncertain, the specialist discusses a test that helps estimate how much insulin the patient's pancreas still produces. Which test serves that purpose?

   1. A. A C-peptide test
   2. B. An A1C test
   3. C. An autoantibody test
   4. D. A fasting glucose test

   Answer: A

   Explanation: NIDDK identifies "a C-peptide test to see how much insulin your pancreas makes" when classification is unclear. A1C and glucose tests assess glycemia, while autoantibodies assess autoimmunity.

   Reference: Type 1 Diabetes — How do health care professionals diagnose type 1 diabetes? > Other tests

9. 9A diabetes care specialist is checking whether an Asian American adult meets the BMI component for enrollment in a CDC-recognized National DPP lifestyle change program. What is the minimum BMI specified for that population in the 2024 DPRP Standards?

   1. A. 20 kg/m²
   2. B. 23 kg/m²
   3. C. 25 kg/m²
   4. D. 27 kg/m²

   Answer: B

   Explanation: The 2024 CDC standards set BMI at "≥25 kg/m2 (≥23 kg/m2, if Asian or Asian American)." Because the person is Asian American, 23 kg/m² is the minimum BMI component; other eligibility conditions still must be checked.

   Reference: 2024 CDC Diabetes Prevention Recognition Program Standards and Operating Procedures — Section II.A.2, Participant Eligibility, printed page 5

10. 10A specialist reviews a person with type 1 diabetes for the need for yearly diabetic kidney disease testing. Which disease duration meets the NIDDK indication?

    1. A. Type 1 diabetes for 2 years
    2. B. Type 1 diabetes for 4 years
    3. C. Type 1 diabetes for 5 years
    4. D. Type 1 diabetes for 6 years

    Answer: D

    Explanation: NIDDK recommends yearly kidney disease testing for people who "have had type 1 diabetes for more than 5 years." Six years meets that duration; five years exactly does not exceed it.

    Reference: Diabetic Kidney Disease — How can I tell if I have diabetic kidney disease?