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: A reduced glycosylated hemoglobin level (Hemoglobin A1C) indicates that blood sugar levels have been well-controlled over the past three months. Hemoglobin A1C is a measure of the average blood glucose levels over this period. A lower A1C level suggests that the patient has been maintaining good control of their blood sugar levels, making it an unlikely indicator of poor diabetes management. The normal range for Hemoglobin A1C is below 5.7%, while levels between 5.7% and 6.4% indicate prediabetes, and levels above 6.5% indicate diabetes.
Choice B reason: An elevated glycosylated hemoglobin level is a clear indicator that the patient has not been maintaining tight control of their blood sugar levels. Hemoglobin A1C reflects the average blood glucose levels over the past three months. If the A1C level is high, it suggests that the patient's blood sugar levels have been elevated consistently over this period. This can occur despite the patient reporting blood sugar levels within the target range during clinic visits. An elevated A1C level (greater than 6.5%) is a strong sign of inadequate diabetes management and suggests the need for adjustments in the treatment plan.
Choice C reason: A random blood sugar level of 150 mg/dL performed in the clinic provides a snapshot of the patient's blood sugar level at a single point in time. While this level is above the normal range (typically below 140 mg/dL for non-diabetics), it does not provide a comprehensive picture of the patient's overall blood sugar control. Blood sugar levels can fluctuate due to various factors, including recent meals, stress, and physical activity. Therefore, a single random blood sugar reading is not a reliable indicator of tight diabetes control.
Choice D reason: The statement that there is no method to determine whether the patient is in tight glucose control is incorrect. There are several methods to assess diabetes control, with the Hemoglobin A1C test being one of the most reliable. Additionally, frequent monitoring of blood sugar levels through self-testing and continuous glucose monitoring systems can provide valuable information about how well the patient is managing their diabetes. These methods allow healthcare providers to make informed decisions about treatment adjustments and overall diabetes management strategies.
Correct Answer is D
Explanation
Choice A reason: This statement is partially correct but does not fully address the question about glucose readings. The Dawn Phenomenon involves an increase in blood glucose levels in the early morning due to the release of counter-regulatory hormones (like cortisol and growth hormone) that increase insulin resistance and stimulate glucose release from the liver.
Choice B reason: This statement is true but incomplete. The Dawn Phenomenon is indeed caused by the release of certain hormones, but this option does not specify the timing or the glucose readings.
Choice C reason: While the hyperglycemia associated with the Dawn Phenomenon does typically occur between 4 a.m. and 9 a.m., this option does not fully describe the nature of the glucose readings. It is more important to note that the hyperglycemia is not due to overnight hypoglycemia.
Choice D reason: This statement accurately describes the Dawn Phenomenon. It is characterized by morning hyperglycemia that is not caused by overnight hypoglycemia. Instead, it is due to the body's natural release of counter-regulatory hormones, which increase blood glucose levels during the early morning hours.
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