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.

Answer and Explanation

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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Correct Answer is A

Explanation

Type 1 diabetes mellitus is an autoimmune condition in which the body's immune system attacks and destroys pancreatic beta cells, resulting in a lack of insulin production.

Incorrect choices:

b. This choice is incorrect. Type 2 diabetes mellitus is characterized by insulin resistance and impaired insulin secretion, but pancreatic beta cells are not completely destroyed.

c. This choice is incorrect. Gestational diabetes mellitus occurs during pregnancy and is not caused by autoimmune destruction of pancreatic beta cells.

d. This choice is incorrect. Prediabetes is a condition in which blood glucose levels are higher than normal but not high enough to be classified as diabetes. It is not characterized by autoimmune destruction of beta cells.

A. Fasting blood glucose test. B. Hemoglobin A1c (HbA1c) test. C. Oral glucose tolerance test (OGTT). D. Random blood glucose test.

Correct Answer is C

Explanation

The OGTT involves drinking a glucose solution and measuring blood glucose levels at specific intervals. It is used to assess glucose tolerance and diagnose gestational diabetes mellitus during pregnancy.

Incorrect choices:

a. This choice is incorrect. The fasting blood glucose test measures blood glucose levels after an overnight fast and is not specifically used for diagnosing gestational diabetes.

b. This choice is incorrect. The HbA1c test measures average blood glucose levels over the past 2-3 months and is not typically used for diagnosing gestational diabetes.

d. This choice is incorrect. The random blood glucose test measures blood glucose levels at any time and is not specific for diagnosing gestational diabetes.

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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?

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Naxlex Comprehensive Predictor Exams

Which type of diabetes mellitus is characterized by an autoimmune destruction of pancreatic beta cells, leading to an absolute deficiency of insulin secretion?

Correct Answer is A

Explanation

Which diagnostic test is used to assess glucose tolerance and diagnose gestational diabetes mellitus during pregnancy?

Correct Answer is C

Explanation

Which treatment approach involves delivering a continuous subcutaneous insulin infusion using an insulin pump and providing bolus doses before meals to mimic physiologic insulin secretion?

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?

Which of the following is a potential consequence of prolonged hyperglycemia in diabetes mellitus?

Which of the following is a modifiable risk factor for the development of type 2 diabetes mellitus?

Which clinical manifestation of diabetes mellitus results from chronic hyperglycemia damaging small blood vessels and nerves?

Which classification of diabetes mellitus occurs during pregnancy and typically resolves after childbirth?

Which classification of diabetes mellitus is characterized by an autoimmune destruction of pancreatic beta cells, resulting in an absolute insulin deficiency?

Which complication of diabetes mellitus is characterized by damage to the blood vessels of the retina, leading to vision impairment and potential blindness?