Which is considered a cardinal sign of diabetes mellitus?
a. Nausea
b. Seizures
c. Impaired vision
d. Frequent urination
ANS: D
Hallmarks of diabetes mellitus are glycosuria, polyuria, and polydipsia. Nausea and seizures are not clinical manifestations of diabetes mellitus. Impaired vision is a long-term complication of the disease.
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