Which of the following accurately describes the role of insulin in glucose metabolism?

Insulin increases blood sugar levels by promoting glucose uptake into cells.

Insulin decreases blood sugar levels by promoting glycogen breakdown in the liver.

Insulin decreases blood sugar levels by promoting glucose uptake into cells.

Insulin increases blood sugar levels by inhibiting glycogen synthesis.

Answer and Explanation

The Correct Answer is C

Insulin plays a key role in glucose metabolism by facilitating the uptake of glucose into cells, reducing blood sugar levels. It also promotes glycogen synthesis in the liver and muscle cells.

Incorrect choices:

a. This choice is incorrect. Insulin promotes glucose uptake into cells, leading to decreased blood sugar levels.

b. This choice is incorrect. Insulin promotes glycogen synthesis, which stores glucose and reduces blood sugar levels.

d. This choice is incorrect. Insulin promotes glycogen synthesis, contributing to the storage of glucose and lowering blood sugar levels.

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Free Nursing Study Resources

Correct Answer is A

Explanation

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.

A. In type 1 diabetes, the body's cells become resistant to the effects of insulin. B. Type 1 diabetes is primarily caused by lifestyle factors such as obesity and sedentary behavior. C. In type 1 diabetes, the pancreas produces insufficient amounts of insulin or no insulin at all. D. Type 1 diabetes typically develops in adulthood and is often associated with insulin resistance.

Correct Answer is C

Explanation

Type 1 diabetes is characterized by the autoimmune destruction of pancreatic beta cells, leading to a lack of insulin production. This results in an absolute insulin deficiency and requires external insulin administration.

Incorrect choices:

a. This choice is incorrect. Insulin resistance is a characteristic of type 2 diabetes, not type 1.

b. This choice is incorrect. Type 1 diabetes is not primarily caused by lifestyle factors; it has an autoimmune etiology.

d. This choice is incorrect. Type 1 diabetes typically develops in childhood or adolescence, not adulthood, and is not associated with insulin resistance.

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Which of the following accurately describes the role of insulin in glucose metabolism?

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Naxlex Comprehensive Predictor Exams

Which type of diabetes mellitus is characterized by an autoimmune destruction of pancreatic beta cells, leading to an absolute deficiency of insulin production?

Correct Answer is A

Explanation

Which of the following statements accurately describes the pathophysiology of type 1 diabetes mellitus?

Correct Answer is C

Explanation

Which statement about type 2 diabetes mellitus is accurate?

A client with diabetes is experiencing symptoms of hypoglycemia. The nurse should instruct the client to consume:

Which classification of diabetes mellitus occurs during pregnancy and typically resolves after childbirth?

Which laboratory test is commonly used to monitor long-term glycemic control in individuals with diabetes mellitus by measuring average blood glucose levels over the past 2 to 3 months?

Which diagnostic test is used to assess glucose tolerance and diagnose gestational diabetes mellitus during pregnancy?

Which of the following is a long-term complication associated with uncontrolled diabetes mellitus?

Which complication of diabetes mellitus is characterized by the accumulation of glucose within the lens of the eye, leading to changes in vision and the development of cataracts?

Which chronic complication of diabetes mellitus is characterized by the thickening and narrowing of small blood vessels, leading to impaired blood flow to the lower extremities?