Microvascular complications are degenerative changes occurring in the small vessels such as:
Retinopathy
Stroke
Atherosclerosis
Coronary disease
The Correct Answer is B
Choice A reason: Retinopathy is a common microvascular complication, particularly in individuals with diabetes. It occurs when high blood sugar levels cause damage to the small blood vessels in the retina, leading to vision problems and, in severe cases, blindness. Diabetic retinopathy is a well-known example of how microvascular complications can affect the eye.
Choice B reason: Stroke, on the other hand, is not typically categorized as a microvascular complication. Strokes occur when the blood supply to part of the brain is interrupted or reduced, preventing brain tissue from getting enough oxygen and nutrients. This can be due to a blockage in larger blood vessels or bleeding. While small vessel disease can contribute to stroke risk, it is primarily associated with larger vascular issues, thus not fitting the classic definition of microvascular complications.
Choice C reason: Atherosclerosis is a condition characterized by the buildup of fats, cholesterol, and other substances in and on the artery walls, which can lead to restricted blood flow. This process can affect both large and small blood vessels, and while it contributes to various cardiovascular diseases, it is not exclusively considered a microvascular complication. Microvascular complications refer more specifically to the tiny blood vessels, like those in the eyes and kidneys.
Choice D reason: Coronary disease, also known as coronary artery disease (CAD), involves the large arteries that supply blood to the heart muscle. It is characterized by the narrowing or blockage of these arteries due to atherosclerosis. While CAD is a significant cardiovascular condition, it does not fall under the category of microvascular complications, which are more commonly associated with the very small blood vessels affected by conditions like diabetes.
Nursing Test Bank
Naxlex Comprehensive Predictor Exams
Related Questions
Correct Answer is A
Explanation
Choice A reason: Type 1 diabetes is characterized by the destruction of pancreatic islet cells (also known as beta cells) that produce insulin. This autoimmune process leads to a severe lack of insulin in the body. Insulin is essential for regulating blood glucose levels, and without it, glucose cannot enter the cells and remains in the bloodstream, leading to hyperglycemia. This destruction of insulin-producing cells is the fundamental defect in type 1 diabetes.
Choice B reason: Resistance of insulin-sensitive tissues to insulin is a characteristic of type 2 diabetes, not type 1 diabetes. In type 2 diabetes, the body's cells become resistant to insulin, and the pancreas may eventually fail to produce enough insulin to overcome this resistance. This leads to elevated blood glucose levels, but the underlying mechanism is different from the autoimmune destruction seen in type 1 diabetes.
Choice C reason: Stimulation by food intake of glucose production resulting in increased insulin production is not a defining feature of type 1 diabetes. While the intake of food does lead to glucose production and a subsequent need for insulin, this mechanism is part of normal physiology and is not specific to any type of diabetes. Type 1 diabetes specifically involves the lack of insulin production due to the destruction of the pancreatic beta cells.
Choice D reason: Decreased production of releasing hormones by the hypothalamus is not related to the pathophysiology of type 1 diabetes. The hypothalamus plays a role in regulating various hormonal processes, but type 1 diabetes is primarily an autoimmune disorder affecting the pancreas. The destruction of insulin-producing beta cells in the pancreas is the key issue in type 1 diabetes.
Correct Answer is ["A","B","D"]
Explanation
Choice A reason: Gestational diabetes is indeed due to insulin resistance. During pregnancy, hormonal changes can cause the body's cells to become less responsive to insulin, leading to higher blood glucose levels.
Choice B reason: In gestational diabetes, the pancreas is unable to produce enough insulin to overcome the insulin resistance caused by pregnancy hormones. This insufficient insulin production leads to elevated blood glucose levels.
Choice C reason: Gestational diabetes is not permanent. It specifically occurs during pregnancy and usually resolves after the baby is born. However, women who have had gestational diabetes are at an increased risk of developing type 2 diabetes later in life.
Choice D reason: Gestational diabetes occurs during pregnancy. It is diagnosed when blood glucose levels are elevated in a pregnant woman who did not have diabetes before pregnancy.
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