Which classification of diabetes mellitus is not related to insulin deficiency or resistance, but rather results from genetic mutations affecting the function of specific genes involved in beta cell function?
Type 1 diabetes mellitus.
Type 2 diabetes mellitus.
Maturity-onset diabetes of the young (MODY).
Gestational diabetes mellitus.
The Correct Answer is C
MODY is a rare form of diabetes caused by genetic mutations affecting beta cell function. It is not primarily related to insulin deficiency or resistance.
Incorrect choices:
a. This choice is incorrect. Type 1 diabetes mellitus involves autoimmune destruction of beta cells and insulin deficiency.
b. This choice is incorrect. Type 2 diabetes mellitus involves insulin resistance and relative insulin deficiency.
d. This choice is incorrect. Gestational diabetes mellitus occurs during pregnancy due to hormonal changes and is not primarily caused by genetic mutations.
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Naxlex Comprehensive Predictor Exams
Related Questions
Correct Answer is B
Explanation
The "three P's" of diabetes mellitus refer to polyuria (excessive urination), polydipsia (excessive thirst), and polyphagia (excessive hunger) due to the body's inability to effectively use glucose for energy.
Incorrect choices:
a. This choice is incorrect. Increased appetite, weight gain, and bloating are not characteristic of diabetes mellitus; rather, diabetes is associated with weight loss despite increased appetite (polyphagia).
c. This choice is incorrect. Pallor, palpitations, and pain are not specific manifestations of diabetes mellitus.
d. This choice is incorrect. Panic attacks, paranoia, and paresthesia are not typical clinical manifestations of diabetes mellitus.
Correct Answer is B
Explanation
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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