A client asks a nurse, “What is a hemoglobin A1C test?” Which of the following is the most appropriate response?
It evaluates glycemic control over a 3-month period by measuring the glucose attached to hemoglobin.
It uses the level of serum protein to evaluate glycemic control.
It evaluates serum ketone production over several days.
It determines the amount of glucose attached to hemoglobin over the last seven days.
The Correct Answer is A
Choice A rationale
The hemoglobin A1C test, also known as the HbA1C or glycated hemoglobin test, is a blood test that evaluates glycemic control over a 3-month period by measuring the glucose attached to hemoglobin. This test is commonly used to diagnose and monitor diabetes. It provides an average of your blood sugar levels over the past 2-3 months, which can help healthcare providers assess how well diabetes is being managed.
Choice B rationale
The hemoglobin A1C test does not use the level of serum protein to evaluate glycemic control. Instead, it measures the amount of glucose that is attached to the hemoglobin in your red blood cells.
Choice C rationale
The hemoglobin A1C test does not evaluate serum ketone production over several days. Ketones are produced when the body burns fat for energy, which can occur when there is not enough insulin to help your body use sugar for energy. High levels of ketones can lead to diabetic ketoacidosis, a serious condition that requires immediate medical attention.
Choice D rationale
The hemoglobin A1C test does not determine the amount of glucose attached to hemoglobin over the last seven days. Instead, it provides an average of your blood sugar levels over the past 2-3 months. -
Nursing Test Bank
Naxlex Comprehensive Predictor Exams
Related Questions
Correct Answer is C
Explanation
Choice A rationale
Reddish feet when put down could be a sign of dependent rubor, a condition that occurs due to peripheral arterial disease (PAD). When the legs are in a dependent (downward) position, gravity aids in delivering blood to the area, causing a reddish color. However, this is a common symptom of PAD and does not require immediate intervention.
Choice B rationale
Loss of hair on the feet and legs is another symptom of PAD1. This happens because inadequate blood flow deprives the hair follicles of the nutrients they need to grow. While this symptom indicates worsening PAD, it does not warrant immediate intervention.
Choice C rationale
Applying a heating pad to cold legs could lead to burns because PAD can cause loss of sensation in the legs. This warrants immediate intervention to prevent injury.
Choice D rationale
Leg pain during walking, also known as claudication, is a common symptom of PAD1. This happens because the muscles are not getting enough oxygen due to reduced blood flow.
However, this symptom does not require immediate intervention but should be evaluated further.
Correct Answer is A
Explanation
Choice A rationale
People with Type 1 diabetes have little or no insulin that can be released. This is because their pancreatic β-cells, which produce insulin, are destroyed by an autoimmune process. Without insulin, glucose cannot be taken up into cells to be used for energy. Oral antihyperglycemic agents work by increasing the release of insulin or increasing the body’s sensitivity to insulin, so they are not effective in Type 1 diabetes where there is an absolute insulin deficiency.
Choice B rationale
The cost of oral antihyperglycemic agents is not the primary reason they are not used in Type 1 diabetes. The main issue is the lack of insulin production, which these medications cannot address.
Choice C rationale
People with Type 1 diabetes do not typically have resistance to their endogenous insulin. Insulin resistance is more commonly associated with Type 2 diabetes.
Choice D rationale
While hypoglycemia can occur with the use of some antihyperglycemic agents, this is not the primary reason these medications are not used in Type 1 diabetes. The main issue is the absolute deficiency of insulin.
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