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Which of the following best describes type 1 diabetes mellitus?

A.

Insulin resistance and relative insulin deficiency.

B.

Onset typically occurs in adulthood.

C.

Caused by an autoimmune destruction of pancreatic beta cells.

D.

Mainly managed through oral hypoglycemic agents.

Answer and Explanation

The Correct Answer is C

Type 1 diabetes mellitus is characterized by an autoimmune destruction of pancreatic beta cells, leading to an absolute insulin deficiency. It is not primarily characterized by insulin resistance (choice a) and is not typically diagnosed in adulthood (choice b). Oral hypoglycemic agents (choice d) are not the mainstay of treatment for type 1 diabetes.


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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 D

Explanation

Carbohydrates have the most significant impact on blood glucose levels as they are broken down into glucose during digestion. Monitoring and controlling carbohydrate intake is crucial for managing blood glucose levels in individuals with diabetes mellitus.

Incorrect choices:

a. This choice is incorrect. Fiber intake is important for digestive health and can help stabilize blood glucose levels, but it does not have as direct an impact as carbohydrates.

b. This choice is incorrect. Protein intake can influence insulin secretion, but it has a more modest effect on blood glucose compared to carbohydrates.

c. This choice is incorrect. Fat intake affects overall health, but it has a minimal direct impact on blood glucose levels.

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