Which test is least useful for assessing the effectiveness of glucose management over time in a child with type 1 diabetes?

Which test is least useful for assessing the effectiveness of glucose management over time in a child with type 1 diabetes?

• A. Blood pH
• B. Serum protein level
• C. Serum glucose level
• D. Glycosylated hemoglobin

Answer: (B)

The main idea is to track how well glucose has been controlled over a period of time, not just at a single moment. Glycosylated hemoglobin (HbA1c) reflects average blood glucose over roughly the past 2–3 months, so it’s the best indicator of long-term glucose management in type 1 diabetes. A serum glucose level shows the current blood sugar, which can vary day to day and doesn’t reveal how well control has been maintained over time. Blood pH tells us about acid-base status and is crucial for identifying acute problems like diabetic ketoacidosis, but it does not measure historical glucose control. Serum protein level, on the other hand, is influenced by many unrelated factors and does not correlate with average glucose exposure, making it the least useful for assessing how well glucose is managed over time.

The main idea is to track how well glucose has been controlled over a period of time, not just at a single moment. Glycosylated hemoglobin (HbA1c) reflects average blood glucose over roughly the past 2–3 months, so it’s the best indicator of long-term glucose management in type 1 diabetes. A serum glucose level shows the current blood sugar, which can vary day to day and doesn’t reveal how well control has been maintained over time. Blood pH tells us about acid-base status and is crucial for identifying acute problems like diabetic ketoacidosis, but it does not measure historical glucose control. Serum protein level, on the other hand, is influenced by many unrelated factors and does not correlate with average glucose exposure, making it the least useful for assessing how well glucose is managed over time.