Aron's father has been prescribed an oral hypoglycemic drug. Such drugs act:
As an insulin replacement.
To reduce insulin resistance.
To prevent the formation of glucose.
To decrease the body's need for glucose in body cells.
The Correct Answer is B
Choice A reason: Oral hypoglycemic drugs are not used as insulin replacements. Insulin replacement is usually achieved through the administration of insulin injections or insulin pumps. These devices deliver the hormone directly into the body to help regulate blood sugar levels, especially in individuals with type 1 diabetes or severe type 2 diabetes where insulin production is significantly impaired. Oral hypoglycemic drugs, on the other hand, work by different mechanisms and are primarily used for type 2 diabetes management.
Choice B reason: Many oral hypoglycemic drugs, such as metformin and thiazolidinediones, work by reducing insulin resistance. Insulin resistance is a condition where the body's cells do not respond effectively to insulin, leading to elevated blood sugar levels. By improving the body's sensitivity to insulin, these drugs help lower blood sugar levels and improve glucose uptake by the cells. This mechanism is crucial for managing type 2 diabetes, where insulin resistance is a significant issue.
Choice C reason: Some oral hypoglycemic drugs, like metformin, do help in reducing glucose production by the liver. However, saying that these drugs "prevent" the formation of glucose is not entirely accurate. These drugs can inhibit gluconeogenesis, the process by which the liver produces glucose, thereby helping to lower blood sugar levels. However, this is only one aspect of their action, and they are not solely classified based on this mechanism.
Choice D reason: Decreasing the body's need for glucose in body cells is not a primary action of oral hypoglycemic drugs. These medications aim to regulate blood glucose levels by improving insulin sensitivity, reducing glucose production in the liver, and sometimes increasing insulin secretion by the pancreas. The goal is to ensure that glucose is effectively utilized by the body's cells and that blood sugar levels are kept within a healthy range.
Nursing Test Bank
Naxlex Comprehensive Predictor Exams
Related Questions
Correct Answer is B
Explanation
Choice A reason: Type 1 diabetes is characterized by an absolute deficiency of insulin due to autoimmune destruction of pancreatic beta cells. It is not primarily marked by insulin resistance, which is more characteristic of type 2 diabetes. The genetic and environmental factors in type 1 diabetes lead to a lack of insulin production, rather than resistance.
Choice B reason: In type 1 diabetes, there is an absolute deficit in insulin production. This is because the body's immune system attacks and destroys the insulin-producing beta cells in the pancreas. As a result, individuals with type 1 diabetes require exogenous insulin to manage their blood glucose levels.
Choice C reason: While type 1 diabetes has genetic and environmental influences, the condition results in an inability to produce insulin rather than partial insulin production. The autoimmune response in type 1 diabetes leads to the destruction of almost all beta cells, resulting in an absolute deficit of insulin.
Choice D reason: Type 1 diabetes does not typically exhibit both insulin resistance and no insulin production. While some individuals with type 1 diabetes may develop insulin resistance over time (a condition known as "double diabetes"), the hallmark feature of type 1 diabetes is the absolute deficiency of insulin due to the autoimmune destruction of beta cells.
Correct Answer is C
Explanation
Choice A reason: Hepatic tumors, or liver tumors, are not the most common type of cancer in children. While they can occur, they are relatively rare compared to other types of childhood cancers.
Choice B reason: Osteosarcoma is a type of bone cancer that primarily affects children and young adults. However, it is not the most common type of cancer in children. Osteosarcoma typically occurs in the bones around the knee and upper arm.
Choice C reason: Leukemia is the most common type of cancer in children. It affects the blood and bone marrow and can cause symptoms such as fatigue, easy bruising, and frequent infections. There are different types of leukemia, with acute lymphoblastic leukemia (ALL) being the most common in children.
Choice D reason: Brain tumors are the second most common type of cancer in children, but they are not as prevalent as leukemia. Brain tumors can cause symptoms such as headaches, nausea, and vision problems.
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