Which test is considered the most accurate in evaluating the effectiveness of diet and insulin therapy over time in a 13-year-old with type 1 diabetes?

Which test is considered the most accurate in evaluating the effectiveness of diet and insulin therapy over time in a 13-year-old with type 1 diabetes?

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

Answer: (D)

Glycated hemoglobin (HbA1c) provides an integrated measure of blood glucose levels over the past two to three months because glucose attaches to hemoglobin in red blood cells as they circulate. This makes it the best way to gauge how well diet and insulin therapy are controlling diabetes over time, beyond the day-to-day fluctuations you see with a single blood glucose reading or with tests that reflect current status. The other tests don’t monitor long-term control: blood pH shows acute acid-base status and is mainly used to assess conditions like diabetic ketoacidosis; serum glucose reflects only a momentary level and can vary widely with meals, activity, and insulin; and serum protein levels don’t indicate glycemic control. In pediatric diabetes management, HbA1c trends help clinicians adjust therapy to reduce the risk of long-term complications and set realistic treatment goals for adolescents.

Glycated hemoglobin (HbA1c) provides an integrated measure of blood glucose levels over the past two to three months because glucose attaches to hemoglobin in red blood cells as they circulate. This makes it the best way to gauge how well diet and insulin therapy are controlling diabetes over time, beyond the day-to-day fluctuations you see with a single blood glucose reading or with tests that reflect current status.

The other tests don’t monitor long-term control: blood pH shows acute acid-base status and is mainly used to assess conditions like diabetic ketoacidosis; serum glucose reflects only a momentary level and can vary widely with meals, activity, and insulin; and serum protein levels don’t indicate glycemic control. In pediatric diabetes management, HbA1c trends help clinicians adjust therapy to reduce the risk of long-term complications and set realistic treatment goals for adolescents.