Question

Blood glucose/glycation value of a non-diabetic person:

A. 140-199 mg/dL

B. \(5.5\ \text{HbA}_{1\text{c}}\)

C. 75-100 mg/dL

D. \(7.0\ \text{HbA}_{1\text{c}}\)

Choose the correct answer from the options given below:

• A. C only \
• B. B and C only \
• C. D and A only \
• D. B only

Hint:

A healthy, non-diabetic fasting blood glucose level sits below 100 mg/dL, and an $\text{HbA}_{1\text{c}}$ level stays safely below 5.7.

Answer 1

The Correct Option is B

Step 1: Concept Clinical diagnostic criteria define reference threshold values for fasting blood glucose and glycated hemoglobin levels to differentiate non-diabetic individuals from those with prediabetes or diabetes mellitus.

Step 2: Meaning * Fasting blood glucose measures the concentration of free sugar circulating in the bloodstream after an overnight fast. * $\text{HbA}_{1\text{c}}$ measures the cumulative percentage of glycated hemoglobin to assess long-term blood sugar trends.

Step 3: Analysis * Statement A (140-199 mg/dL): Represents an elevated postprandial or glucose tolerance range, pointing toward prediabetes, not a healthy non-diabetic baseline. * Statement B (5.5 $\text{HbA}_{1\text{c}}$): A normal, non-diabetic index value (the normal threshold is strictly less than 5.7) $\rightarrow$ Correct. * Statement C (75-100 mg/dL): A classic, healthy fasting plasma glucose range for a non-diabetic individual $\rightarrow$ Correct. * Statement D (7.0 $\text{HbA}_{1\text{c}}$): Surpasses the clinical threshold of 6.5, serving as an established diagnostic baseline for confirmed diabetes mellitus.

Step 4: Conclusion Because indicators B and C accurately define non-diabetic values, the correct option is B. Final Answer: (B)