Which diagnostic test is used to assess glucose tolerance and diagnose gestational diabetes mellitus during pregnancy?
Fasting blood glucose test.
Hemoglobin A1c (HbA1c) test.
Oral glucose tolerance test (OGTT).
Random blood glucose test.
The Correct Answer is C
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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Related Questions
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.
Correct Answer is D
Explanation
Secondary diabetes mellitus is caused by other medical conditions or factors that affect insulin secretion or action, such as medications, hormonal disorders, or specific medical conditions.
Incorrect choices:
a. This choice is incorrect. Type 1 diabetes mellitus is primarily caused by autoimmune destruction of beta cells.
b. This choice is incorrect. Type 2 diabetes mellitus involves insulin resistance and relative insulin deficiency, often influenced by lifestyle factors.
c. This choice is incorrect. Gestational diabetes mellitus occurs during pregnancy due to hormonal changes and is not primarily caused by other medical conditions or factors.
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