A patient with type 2 diabetes is scheduled for a follow-up visit in the clinic several months from now. Which test will the nurse schedule to evaluate the effectiveness of treatment for the patient?
Urine dipstick for glucose
Fasting blood glucose
Oral glucose tolerance
Glycosylated hemoglobin (Hemoglobin A1C)
The Correct Answer is D
Choice A reason: Urine dipstick for glucose is not a reliable test to evaluate the effectiveness of treatment for type 2 diabetes. Urine glucose testing can only detect glucose in the urine when the blood glucose level is very high, above the renal threshold of 180 mg/dL. Urine glucose testing does not reflect the average blood glucose level over time, and can be affected by factors such as hydration, medication, and urinary tract infections.
Choice B reason: Fasting blood glucose is a test that measures the blood glucose level after an overnight fast of at least 8 hours. Fasting blood glucose is a useful test to diagnose diabetes, but it is not the best test to evaluate the effectiveness of treatment for type 2 diabetes. Fasting blood glucose only reflects the blood glucose level at one point in time, and can vary depending on the time of day, the amount and type of food eaten, and the activity level.
Choice C reason: Oral glucose tolerance is a test that measures the blood glucose level before and after drinking a solution containing 75 g of glucose. Oral glucose tolerance is another test that can diagnose diabetes, but it is not the most convenient or accurate test to evaluate the effectiveness of treatment for type 2 diabetes. Oral glucose tolerance requires the patient to fast for at least 8 hours, drink the glucose solution, and have blood samples taken at 0, 30, 60, 90, and 120 minutes. Oral glucose tolerance can also be influenced by factors such as stress, illness, medication, and menstrual cycle.
Choice D reason: Glycosylated hemoglobin (Hemoglobin A1C) is a test that measures the percentage of hemoglobin that has glucose attached to it. Hemoglobin is a protein in the red blood cells that carries oxygen. Red blood cells have a lifespan of about 120 days, so the hemoglobin A1C test reflects the average blood glucose level over the past 2 to 3 months. Hemoglobin A1C is the best test to evaluate the effectiveness of treatment for type 2 diabetes, as it shows how well the blood glucose level has been controlled over time, and is not affected by factors such as fasting, food intake, or daily fluctuations.
Nursing Test Bank
Naxlex Comprehensive Predictor Exams
Related Questions
Correct Answer is B
Explanation
Choice A reason: Last eye examination was 18 months ago is not a finding that requires immediate attention from the health care provider. However, the nurse should remind the patient of the importance of regular eye examinations, as diabetes can increase the risk of eye problems, such as cataracts, glaucoma, and diabetic retinopathy. The American Diabetes Association (ADA) recommends that patients with type 2 diabetes have a comprehensive eye examination at least once every two years¹.
Choice B reason: Patient states they are scheduled for a CT scan with contrast dye the next day is a finding that should be promptly discussed with the health care provider. Metformin is a medication that lowers the blood glucose level by reducing the liver's production of glucose and increasing the cells' sensitivity to insulin. Metformin can interact with contrast dye, which is a substance that is injected into the veins to enhance the visibility of organs and tissues in imaging tests, such as CT scans. Contrast dye can impair the kidney function and increase the risk of lactic acidosis, a rare but serious condition where the blood becomes too acidic due to the accumulation of lactic acid. Lactic acidosis can cause symptoms such as nausea, vomiting, abdominal pain, muscle weakness, and breathing difficulties. To prevent this complication, the ADA recommends that patients stop taking metformin at the time of or before the imaging procedure, and resume it 48 hours after the procedure, only if the kidney function is normal².
Choice C reason: Hemoglobin A1C level is 7.9% is not a finding that needs urgent discussion with the health care provider. Hemoglobin A1C is a test that measures the average blood glucose level over the past two to three months. It reflects how well the diabetes is controlled over time. The ADA recommends that most patients with type 2 diabetes aim for a hemoglobin A1C level of less than 7%, as this can reduce the risk of diabetes complications, such as heart disease, kidney disease, nerve damage, and eye damage. A hemoglobin A1C level of 7.9% indicates that the patient's blood glucose level is slightly above the target range, and may need some adjustment in the medication, diet, or exercise plan. However, this is not an emergency situation, and the nurse can review the patient's self-monitoring records, medication adherence, and lifestyle factors, and provide education and support as needed.
Choice D reason: Patient has questions about the prescribed diet is not a finding that warrants immediate communication with the health care provider. However, the nurse should address the patient's questions and concerns, and provide clear and consistent information about the dietary recommendations for type 2 diabetes. A healthy diet for type 2 diabetes should include a variety of foods, such as vegetables, fruits, whole grains, lean proteins, low-fat dairy, and healthy fats. The patient should also limit the intake of added sugars, refined carbohydrates, saturated fats, trans fats, and sodium. The nurse can help the patient plan their meals and snacks, and use tools such as carbohydrate counting, portion control, or the plate method to balance their food choices and blood glucose levels..
Correct Answer is C
Explanation
Choice A reason: This statement is false. IV morphine sulfate is a pain medication that can be given as needed to the postoperative patient. It does not affect the serum sodium level.
Choice B reason: This statement is false. Dextrose 5% in 0.9% sodium chloride is a hypertonic solution that can be used to treat hyponatremia, or low serum sodium level. It provides both glucose and sodium to the patient.
Choice C reason: This statement is true. 5% dextrose in water is a hypotonic solution that can cause further dilution of the serum sodium level. It can worsen the hyponatremia and increase the risk of cerebral edema and seizures.
Choice D reason: This statement is false. Neurologic assessment Q2 hours is a necessary intervention for a patient with hyponatremia, as it can monitor for signs of neurologic deterioration such as confusion, lethargy, or coma.
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