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.
Nursing Test Bank
Naxlex Comprehensive Predictor Exams
Related Questions
Correct Answer is A
Explanation
Excessive thirst and frequent urination are classic symptoms of hyperglycemia in diabetes mellitus. These symptoms result from the body's attempt to eliminate excess glucose through urine.
Incorrect choices:
b. This choice is incorrect. Bradycardia and low blood pressure are not classic symptoms of hyperglycemia; they may be associated with other conditions.
c. This choice is incorrect. Weight gain and increased appetite are not typical symptoms of hyperglycemia; they may be observed in certain situations, but they are not characteristic of uncontrolled diabetes.
d. This choice is incorrect. Hypoglycemic episodes with confusion are symptoms of low blood sugar, not hyperglycemia.
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.
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