Which type of diabetes mellitus is characterized by an autoimmune destruction of pancreatic beta cells, leading to an absolute deficiency of insulin production?
Type 1 diabetes mellitus.
Type 2 diabetes mellitus.
Gestational diabetes mellitus.
Prediabetes.
The Correct Answer is A
Type 1 diabetes mellitus is characterized by an autoimmune process in which the body's immune system destroys the pancreatic beta cells responsible for producing insulin. This results in an absolute deficiency of insulin, requiring exogenous insulin administration for glycemic control.
Incorrect choices:
b. This choice is incorrect. Type 2 diabetes mellitus is characterized by insulin resistance and impaired insulin secretion, rather than autoimmune destruction of beta cells.
c. This choice is incorrect. Gestational diabetes mellitus occurs during pregnancy and is not characterized by autoimmune destruction of beta cells.
d. This choice is incorrect. Prediabetes is a precursor to type 2 diabetes and involves impaired glucose tolerance, but it does not result from autoimmune destruction of beta cells.
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Related Questions
Correct Answer is C
Explanation
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.
Correct Answer is B
Explanation
Consuming a piece of fruit is an appropriate choice for treating hypoglycemia, as it provides a source of natural sugars that can help raise blood sugar levels.
Incorrect choices:
a. This choice is incorrect. A large serving of pasta contains complex carbohydrates that may take longer to raise blood sugar levels.
c. This choice is incorrect. A candy bar may provide a quick source of sugar, but it is often high in added sugars and unhealthy fats.
d. This choice is incorrect. Alcohol can further lower blood sugar levels and is not recommended for treating hypoglycemia.
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