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 A
Explanation
Weight loss despite increased appetite (polyphagia) is a clinical manifestation of diabetes mellitus due to the body's inability to effectively use glucose for energy, leading to breakdown of muscle and fat tissue.
Incorrect choices:
b. This choice is incorrect. Nausea, vomiting, and abdominal pain are not directly related to weight loss despite increased appetite.
c. This choice is incorrect. Impaired wound healing and increased susceptibility to infections are consequences of chronic hyperglycemia, but they are not directly related to weight loss.
d. This choice is incorrect. Rapid weight gain and bloating are not characteristic manifestations of diabetes mellitus; weight loss is more common.
Correct Answer is D
Explanation
Diabetic retinopathy is a complication of diabetes mellitus that affects the blood vessels of the retina, leading to vision impairment and potential blindness. It is a result of prolonged high blood glucose levels damaging the small blood vessels in the eye.
Incorrect choices:
a. This choice is incorrect. Diabetic ketoacidosis (DKA) is an acute complication characterized by high blood glucose levels, ketosis, and metabolic acidosis.
b. This choice is incorrect. Diabetic nephropathy is a chronic complication that affects the kidneys and can lead to impaired kidney function.
c. This choice is incorrect. Diabetic neuropathy refers to nerve damage due to diabetes and can cause symptoms such as tingling, pain, and loss of sensation in the extremities.
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