Which diagnostic test is used to assess the body's ability to clear glucose from the blood and is commonly used to diagnose diabetes mellitus?
Fasting blood glucose test.
Hemoglobin A1c (HbA1c) test.
C-peptide test.
Oral glucose tolerance test (OGTT).
The Correct Answer is D
The OGTT measures the body's ability to clear glucose from the blood by drinking a glucose solution and measuring blood glucose levels at specific intervals. It is commonly used to diagnose diabetes mellitus.
Incorrect choices:
a. This choice is incorrect. The fasting blood glucose test measures blood glucose levels after an overnight fast and is not specifically used to assess glucose clearance.
b. This choice is incorrect. The HbA1c test measures average blood glucose levels over the past 2-3 months and is not specifically used to assess glucose clearance.
c. This choice is incorrect. The C-peptide test assesses insulin production by the pancreas and is not specifically used to assess glucose clearance.
Nursing Test Bank
Naxlex Comprehensive Predictor Exams
Related Questions
Correct Answer is B
Explanation
Basal-bolus insulin therapy involves administering a continuous basal insulin infusion to provide background insulin coverage and delivering bolus doses of insulin before meals to cover postprandial glucose elevations.
Incorrect choices:
a. This choice is incorrect. Oral antidiabetic medications are not used in basal-bolus insulin therapy.
c. This choice is incorrect. Sliding-scale insulin therapy involves adjusting insulin doses based on current blood glucose levels, rather than providing consistent basal and mealtime coverage.
d. This choice is incorrect. Insulin glargine therapy provides long-acting basal insulin coverage but does not involve bolus doses before meals.
Correct Answer is C
Explanation
Type 1 diabetes mellitus is characterized by an autoimmune destruction of pancreatic beta cells, leading to an absolute insulin deficiency. It is not primarily characterized by insulin resistance (choice a) and is not typically diagnosed in adulthood (choice b). Oral hypoglycemic agents (choice d) are not the mainstay of treatment for type 1 diabetes.
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