What would be the outcome if your patient did not have alpha cells of the pancreas?
They would not be able to secrete insulin.
They would not be able to secrete glucagon.
They would not be able to secrete somatostatin and gastrin.
They would not be able to secrete pancreatic polypeptides.
The Correct Answer is B
Choice A reason: Alpha cells of the pancreas do not produce insulin. Insulin is produced by the beta cells of the pancreas. Therefore, the absence of alpha cells would not affect insulin secretion.
Choice B reason: The primary function of alpha cells in the pancreas is to produce and secrete glucagon. Glucagon is a hormone that raises blood glucose levels by promoting the conversion of glycogen to glucose in the liver. Without alpha cells, the body would not be able to secrete glucagon, leading to issues with glucose regulation.
Choice C reason: Somatostatin and gastrin are not secreted by alpha cells. Somatostatin is produced by delta cells of the pancreas and other parts of the digestive system, while gastrin is primarily produced by G cells in the stomach lining. Therefore, the absence of alpha cells would not affect the secretion of somatostatin and gastrin.
Choice D reason: Pancreatic polypeptides are produced by PP cells (pancreatic polypeptide cells) in the pancreas. The absence of alpha cells would not impact the secretion of pancreatic polypeptides.
Nursing Test Bank
Naxlex Comprehensive Predictor Exams
Related Questions
Correct Answer is B
Explanation
Choice A reason: The overall goal of treatment for both type 1 and type 2 diabetes is to maintain blood glucose levels within a normal range and prevent complications. While the strategies to achieve these goals may differ, the ultimate objectives are similar for both types of diabetes.
Choice B reason: The treatment for type 1 diabetes primarily involves insulin therapy, as the body cannot produce insulin. In contrast, type 2 diabetes treatment often starts with lifestyle changes and oral medications to improve insulin sensitivity and control blood glucose levels. Insulin therapy may be required later in the course of type 2 diabetes if other treatments are insufficient.
Choice C reason: Both types of diabetes are diagnosed using similar criteria, including measuring blood glucose levels through fasting blood glucose tests, oral glucose tolerance tests, and HbA1c levels. The diagnosis process itself is not a major differentiating factor between the two types.
Choice D reason: The potential long-term complications of both type 1 and type 2 diabetes are similar and include cardiovascular disease, neuropathy, nephropathy, retinopathy, and other complications related to prolonged high blood glucose levels. While the risk factors and progression may vary, the types of complications are not significantly different between the two conditions.
Correct Answer is D
Explanation
Choice A reason: Excessive fluid replacement can lead to hypervolemia because it increases the total volume of fluid in the body. This can overwhelm the body's regulatory mechanisms, leading to fluid overload.
Choice B reason: Dehydration is not a cause of hypervolemia. In fact, dehydration is the opposite condition, where there is a lack of fluid in the body. Dehydration leads to a decrease in fluid volume, not an increase.
Choice C reason: Liver cirrhosis can cause hypervolemia because it impairs the liver's ability to regulate fluid balance. This can result in fluid retention and buildup in the body, leading to hypervolemia.
Choice D reason: Kidney failure can cause hypervolemia because the kidneys are responsible for maintaining fluid balance by excreting excess fluid. When the kidneys fail, they cannot effectively remove excess fluid, leading to fluid overload.
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