Which diagnostic test is used to assess glucose tolerance and diagnose gestational diabetes mellitus during pregnancy?

Fasting blood glucose test.

Hemoglobin A1c (HbA1c) test.

Oral glucose tolerance test (OGTT).

Random blood glucose test.

Answer and Explanation

The Correct Answer is C

The OGTT involves drinking a glucose solution and measuring blood glucose levels at specific intervals. It is used to assess glucose tolerance and diagnose gestational diabetes mellitus during pregnancy.

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 for diagnosing gestational diabetes.

b. This choice is incorrect. The HbA1c test measures average blood glucose levels over the past 2-3 months and is not typically used for diagnosing gestational diabetes.

d. This choice is incorrect. The random blood glucose test measures blood glucose levels at any time and is not specific for diagnosing gestational diabetes.

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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.

A. Insulin increases blood sugar levels by promoting glucose uptake into cells. B. Insulin decreases blood sugar levels by promoting glycogen breakdown in the liver. C. Insulin decreases blood sugar levels by promoting glucose uptake into cells. D. Insulin increases blood sugar levels by inhibiting glycogen synthesis.

Correct Answer is C

Explanation

Insulin plays a key role in glucose metabolism by facilitating the uptake of glucose into cells, reducing blood sugar levels. It also promotes glycogen synthesis in the liver and muscle cells.

Incorrect choices:

a. This choice is incorrect. Insulin promotes glucose uptake into cells, leading to decreased blood sugar levels.

b. This choice is incorrect. Insulin promotes glycogen synthesis, which stores glucose and reduces blood sugar levels.

d. This choice is incorrect. Insulin promotes glycogen synthesis, contributing to the storage of glucose and lowering blood sugar levels.

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Which diagnostic test is used to assess glucose tolerance and diagnose gestational diabetes mellitus during pregnancy?

Nursing Test Bank

Naxlex Comprehensive Predictor Exams

Which of the following best describes type 1 diabetes mellitus?

Correct Answer is C

Explanation

Which of the following accurately describes the role of insulin in glucose metabolism?

Correct Answer is C

Explanation

Which hormone, produced by the pancreas, plays a key role in regulating blood glucose levels by facilitating glucose uptake into cells and promoting its storage as glycogen in the liver and muscles?

Which diagnostic test is commonly used to assess long-term glucose control in individuals with diabetes mellitus?

Which clinical manifestation is often referred to as the "three P's" of diabetes mellitus?

Which diagnostic criterion is indicative of diabetes mellitus on a random blood glucose test?

Which dietary component is particularly important for individuals with diabetes mellitus to monitor and control due to its direct impact on blood glucose levels?

Which of the following is a modifiable risk factor for the development of type 2 diabetes mellitus?

Which type of diabetes mellitus is characterized by an autoimmune destruction of pancreatic beta cells, leading to an absolute deficiency of insulin secretion?

Which complication of diabetes mellitus is characterized by high blood glucose levels and the presence of ketones in the urine, leading to metabolic acidosis and potentially life-threatening complications?