Which statement about type 2 diabetes mellitus is accurate?
It is characterized by an absolute deficiency of insulin secretion.
It primarily affects children and young adults.
Insulin resistance and impaired insulin secretion are key factors in its development.
It is caused by an autoimmune destruction of pancreatic beta cells.
The Correct Answer is C
Type 2 diabetes mellitus is characterized by insulin resistance, in which cells do not respond effectively to insulin, and impaired insulin secretion by pancreatic beta cells.
Incorrect choices:
a. This choice is incorrect. Type 2 diabetes mellitus is not characterized by an absolute deficiency of insulin secretion as seen in type 1 diabetes.
b. This choice is incorrect. Type 2 diabetes mellitus primarily affects adults, especially those who are older and have risk factors such as obesity and sedentary lifestyle.
d. This choice is incorrect. Type 2 diabetes mellitus is not caused by autoimmune destruction of pancreatic beta cells as seen in type 1 diabetes.
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Naxlex Comprehensive Predictor Exams
Related Questions
Correct Answer is B
Explanation
A fasting blood glucose level of 126 mg/dL or higher on two separate occasions is indicative of diabetes mellitus. A level of 110 mg/dL is within the normal range, and levels of 90 mg/dL and 100 mg/dL are also normal.
Incorrect choices:
a. This choice is incorrect. A fasting blood glucose level of 110 mg/dL is within the normal range.
c. This choice is incorrect. A fasting blood glucose level of 90 mg/dL is within the normal range.
d. This choice is incorrect. A fasting blood glucose level of 100 mg/dL is within the normal range.
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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