Glucose Quiz: Can You Read The A1c?

1. A postprandial (2-hour after meal) blood glucose >140 mg/dL indicates:

Normal glucose tolerance

Impaired glucose tolerance

Type 2 diabetes

Hypoglycemia

2. A patient with chronic liver disease has an artificially low HbA1c. This is most likely due to:

Increased red blood cell lifespan

Decreased red blood cell lifespan

Enhanced insulin sensitivity

Reduced glucose absorption

3. True or False: Glucose & HbA1c levels are unaffected by stress and illness.

True

False

4. Which HbA1c result best indicates achievement of diabetes treatment goals in most adults?

5. The dawn phenomenon refers to early-morning blood glucose elevation caused by:

Excessive evening carbohydrate intake

Hormonal changes and counterregulation

Inadequate insulin dosing

Infection or illness

6. True or False: A single elevated blood glucose value is sufficient to diagnose diabetes.

True

False

7. Which medication class works by increasing insulin secretion?

Metformin

Sulfonylureas

SGLT2 inhibitors

DPP-4 inhibitors

8. A patient's fasting glucose is 126 mg/dL on two separate occasions. This indicates:

Impaired fasting glucose

Prediabetes

Type 2 diabetes

Reactive hyperglycemia

9. Which complication is most directly associated with chronic hyperglycemia?

Acute hypoglycemia

Diabetic neuropathy

Hyperthyroidism

Osteoporosis

10. True or False: HbA1c can be used to diagnose gestational diabetes.

True

False

11. What is the normal fasting blood glucose range for a non-diabetic adult?

70–100 mg/dL

100–125 mg/dL

125–150 mg/dL

150–200 mg/dL

12. Which hormone is primarily responsible for lowering blood glucose?

Glucagon

Cortisol

Insulin

Epinephrine

13. A patient with Type 1 diabetes should target an HbA1c of approximately:

14. Which factor can falsely lower HbA1c results?

Chronic kidney disease

Hemolytic anemia

Iron deficiency anemia

Polycythemia

15. A patient's random blood glucose is 180 mg/dL. What is the most appropriate next step?

Diagnose diabetes immediately

Obtain a fasting glucose and HbA1c

Recommend lifestyle changes only

Start insulin therapy

16. What is the diagnostic threshold for diabetes using HbA1c?

≥5.7%

≥6.0%

≥6.5%

≥7.0%

17. A patient with Type 2 diabetes has an HbA1c of 8.2%. What does this indicate?

Excellent glycemic control

Adequate glycemic control

Suboptimal glycemic control

Severe hyperglycemia

18. Which statement about HbA1c testing is correct?

It measures glucose at a single point in time

It requires fasting prior to the test

It reflects glycemic control over 2–3 months

It is unaffected by hemoglobin variants

19. An HbA1c of 5.7% in a non-diabetic patient indicates which condition?

Normal glucose tolerance

Prediabetes

Type 2 diabetes

Type 1 diabetes

20. HbA1c reflects average blood glucose over approximately how many months?

1 month

2–3 months

6–8 months

12 months

Glucose Quiz: Can You Read the A1c?

1. A postprandial (2-hour after meal) blood glucose >140 mg/dL indicates:

2.

What first name or nickname would you like us to use?

2. A patient with chronic liver disease has an artificially low HbA1c. This is most likely due to:

3. True or False: Glucose & HbA1c levels are unaffected by stress and illness.

4. Which HbA1c result best indicates achievement of diabetes treatment goals in most adults?

5. The dawn phenomenon refers to early-morning blood glucose elevation caused by:

6. True or False: A single elevated blood glucose value is sufficient to diagnose diabetes.

7. Which medication class works by increasing insulin secretion?

8. A patient's fasting glucose is 126 mg/dL on two separate occasions. This indicates:

9. Which complication is most directly associated with chronic hyperglycemia?

10. True or False: HbA1c can be used to diagnose gestational diabetes.

11. What is the normal fasting blood glucose range for a non-diabetic adult?

12. Which hormone is primarily responsible for lowering blood glucose?

13. A patient with Type 1 diabetes should target an HbA1c of approximately:

14. Which factor can falsely lower HbA1c results?

15. A patient's random blood glucose is 180 mg/dL. What is the most appropriate next step?

16. What is the diagnostic threshold for diabetes using HbA1c?

17. A patient with Type 2 diabetes has an HbA1c of 8.2%. What does this indicate?

18. Which statement about HbA1c testing is correct?

19. An HbA1c of 5.7% in a non-diabetic patient indicates which condition?

20. HbA1c reflects average blood glucose over approximately how many months?