Which diagnostic test for diabetes mellitus provides a measure of glucose levels for the previous 8 to 12 weeks?
Glycosylated hemoglobin (HbA1C)
Oral glucose tolerance test
Postprandial glucose test
Fasting blood sugar (FSBS)
The Correct Answer is A
A. Glycosylated hemoglobin (HbA1C): The HbA1C test provides an average measure of blood glucose levels over the past 8 to 12 weeks. It reflects the percentage of hemoglobin that has glucose attached to it, giving an indication of long-term blood sugar control.
B. Oral glucose tolerance test: This test measures the body’s response to glucose by checking blood sugar levels after drinking a sugary solution. It does not provide an average of blood glucose over weeks, but rather, it assesses blood glucose levels at specific time points after glucose ingestion.
C. Postprandial glucose test: This test measures blood glucose levels after eating a meal, typically 1 to 2 hours later. It provides information about immediate glucose levels, not long-term glucose control over weeks.
D. Fasting blood sugar (FSBS): This test measures blood glucose levels after fasting for at least 8 hours. It gives a snapshot of current glucose levels but does not provide a measure of glucose control over weeks.
Nursing Test Bank
Naxlex Comprehensive Predictor Exams
Related Questions
Correct Answer is B
Explanation
A. Characterized mainly by insulin resistance: Insulin resistance is more characteristic of type 2 diabetes, not type 1 diabetes. In type 1 diabetes, the body is unable to produce insulin due to the autoimmune destruction of pancreatic beta cells.
B. Characterized mainly by insulin deficiency: Type 1 diabetes is caused by insulin deficiency due to the body's inability to produce insulin, leading to high blood sugar levels. This is a life-long condition that requires insulin replacement for proper blood glucose control.
C. Best managed through diet, exercise, and oral medication: Type 1 diabetes cannot be managed with oral medication alone. It requires insulin injections or an insulin pump in addition to diet and exercise to control blood glucose levels.
D. Can be prevented by proper nutrition and monitoring blood glucose levels: Type 1 diabetes is an autoimmune disease and cannot be prevented through nutrition or blood glucose monitoring. Prevention strategies are more applicable to type 2 diabetes.
Correct Answer is C
Explanation
A. At bedtime: Thyroid replacement therapy, such as levothyroxine, should not be taken at bedtime because absorption may be reduced due to the body’s metabolism slowing down during sleep. The medication is best absorbed when taken on an empty stomach.
B. With the evening meal: Levothyroxine should not be taken with food, as certain foods (like those rich in fiber, calcium, and iron) can interfere with its absorption. It should be taken on an empty stomach.
C. 30 minutes before breakfast and other medication: Levothyroxine should be taken 30 minutes to 1 hour before breakfast with a full glass of water. This allows the medication to be absorbed properly without interference from food or other medications.
D. With the noon meal: Taking levothyroxine with meals can reduce its absorption, and the patient should avoid food for at least 30 minutes after taking the medication. Taking it before breakfast is the most effective.
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