Which diagnostic criterion is indicative of diabetes mellitus on a random blood glucose test?
Random blood glucose level of 90 mg/dL.
Random blood glucose level of 140 mg/dL or higher.
Random blood glucose level of 110 mg/dL.
Random blood glucose level of 120 mg/dL.
The Correct Answer is B
A random blood glucose level of 140 mg/dL or higher, along with symptoms of hyperglycemia, is indicative of diabetes mellitus. Symptoms may include excessive thirst, frequent urination, and unexplained weight loss.
Incorrect choices:
a. This choice is incorrect. A random blood glucose level of 90 mg/dL is within the normal range.
c. This choice is incorrect. A random blood glucose level of 110 mg/dL is within the normal range.
d. This choice is incorrect. A random blood glucose level of 120 mg/dL is within the normal range
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Related Questions
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.
Correct Answer is A
Explanation
Metformin is a commonly used oral antidiabetic medication that improves insulin sensitivity in peripheral tissues, reduces hepatic glucose production, and enhances glucose uptake by cells.
Incorrect choices:
b. This choice is incorrect. Glipizide is a sulfonylurea medication that stimulates insulin secretion from the pancreas, rather than increasing insulin sensitivity.
c. This choice is incorrect. Insulin lispro is a rapid-acting insulin analog used for mealtime coverage in insulin therapy.
d. This choice is incorrect. Exenatide is a glucagon-like peptide-1 (GLP-1) receptor agonist that stimulates insulin secretion and suppresses glucagon release, but it does not primarily target insulin sensitivity.
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