Which laboratory test is commonly used to monitor long-term glycemic control in individuals with diabetes mellitus by measuring average blood glucose levels over the past 2 to 3 months?
Fasting blood glucose test.
Oral glucose tolerance test (OGTT).
Hemoglobin A1c (HbA1c) test.
C-peptide test.
The Correct Answer is C
The Hemoglobin A1c (HbA1c) test measures the percentage of hemoglobin that is glycated, reflecting average blood glucose levels over the past 2 to 3 months. It is a valuable tool for assessing long-term glycemic control.
Incorrect choices:
a. This choice is incorrect. The fasting blood glucose test measures blood glucose levels after an overnight fast and provides a snapshot of current glucose levels, rather than long-term control.
b. This choice is incorrect. The oral glucose tolerance test (OGTT) measures how the body responds to a glucose load and is used to diagnose diabetes and impaired glucose tolerance, rather than monitor long-term control.
d. This choice is incorrect. The C-peptide test is used to assess insulin production by measuring the level of C-peptide, a byproduct of insulin production.
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Related Questions
Correct Answer is B
Explanation
Type 2 diabetes mellitus is characterized by insulin resistance, where cells do not effectively respond to insulin, and relative insulin deficiency due to impaired beta cell function.
Incorrect choices:
a. This choice is incorrect. Type 1 diabetes mellitus involves autoimmune destruction of beta cells and an absolute insulin deficiency.
c. This choice is incorrect. Gestational diabetes mellitus occurs during pregnancy and may involve a combination of insulin resistance and impaired insulin secretion.
d. This choice is incorrect. Secondary diabetes mellitus is caused by other medical conditions or factors, not primarily by insulin resistance and relative insulin deficiency.
Correct Answer is D
Explanation
Carbohydrates have the most significant impact on blood glucose levels as they are broken down into glucose during digestion. Monitoring and controlling carbohydrate intake is crucial for managing blood glucose levels in individuals with diabetes mellitus.
Incorrect choices:
a. This choice is incorrect. Fiber intake is important for digestive health and can help stabilize blood glucose levels, but it does not have as direct an impact as carbohydrates.
b. This choice is incorrect. Protein intake can influence insulin secretion, but it has a more modest effect on blood glucose compared to carbohydrates.
c. This choice is incorrect. Fat intake affects overall health, but it has a minimal direct impact on blood glucose levels.
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