Which is a true statement about diabetes mellitus?

a. Type 2 diabetes results from a failure of the pancreas to produce insulin.
b. Diabetes is diagnosed after two fasting plasma glucose readings over 125 mg/dl.
c. Non–insulin dependent diabetes mellitus is another name for type 1 diabetes.
d. The incidence of diabetes mellitus does not increase with age.


B

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A Incorrect. Type 2 diabetes is present when insulin is produced but does not low-er the blood glucose level.
B Correct. Fasting plasma glucose over 125 is considered diabetes, whereas a level between 110 and 125 is considered to be impaired fasting glucose (IFG).
C Incorrect. Type 1 diabetes was formerly called insulin-dependent diabetes mel-litus (IDDM), whereas type 2 diabetes was formerly called non–insulin depen-dent diabetes mellitus (NIDDM).
D Incorrect. In the United States, approximately 8.7% of all adults have diabetes, whereas 18.3% of persons older than 60 years have diabetes.

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