Which data indicates a diagnosis of diabetes in a patient being assessed for unexplained weight loss?

A) A1C > 6.5%
B) Symptoms of diabetes plus casual plasma glucose concentration > 150mg/dL
C) Fasting plasma glucose < 126 mg/dL
D) 2-hour plasma glucose > 150 mg/dL


A) A1C > 6.5%

Explanation: A) The diagnosis of diabetes in nonpregnant adults should be restricted to those who have one of the following: A1C > 6.5%; symptoms of diabetes plus casual plasma glucose concentration > 200 mg/dL; fasting plasma glucose > 126 mg/dL; or 2-hour plasma glucose > 200 mg/dL during an oral glucose tolerance test.
B) The diagnosis of diabetes in nonpregnant adults should be restricted to those who have one of the following: A1C > 6.5%; symptoms of diabetes plus casual plasma glucose concentration > 200 mg/dL; fasting plasma glucose > 126 mg/dL; or 2-hour plasma glucose > 200 mg/dL during an oral glucose tolerance test.
C) The diagnosis of diabetes in nonpregnant adults should be restricted to those who have one of the following: A1C > 6.5%; symptoms of diabetes plus casual plasma glucose concentration > 200 mg/dL; fasting plasma glucose > 126 mg/dL; or 2-hour plasma glucose > 200 mg/dL during an oral glucose tolerance test.
D) The diagnosis of diabetes in nonpregnant adults should be restricted to those who have one of the following: A1C > 6.5%; symptoms of diabetes plus casual plasma glucose concentration > 200 mg/dL; fasting plasma glucose > 126 mg/dL; or 2-hour plasma glucose > 200 mg/dL during an oral glucose tolerance test.

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