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IHS Diabetes Care & Outcomes Audit
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IHS Standards of Care for Patients
with Type 2 Diabetes
     September 2006    

Part 2: Supporting Statements
  1.      Criteria for the diagnosis of type 2 diabetes in adults

The IHS DDTP supports the following American Diabetes Association (ADA) recommendations for criteria for the diagnosis of type 2 diabetes in adults. We recommend three possible plasma blood tests in the diagnosis of diabetes; we do not recommend the use of an A1c in the diagnosis of diabetes.

Plasma blood tests Diagnostic values
Casual plasma glucose

(Casual is defined as any time of day without regard to time of last meal)

    >200 mg/dl plus symptoms of diabetes:
                       - Polyuria
                       - Polydipsia
                       - Unexplained weight loss
or
Fasting plasma glucose

(Fasting is defined as no caloric intake for at least 8 hrs)

   >126 mg/dl
or
Two-hour plasma glucose  >200 mg/dl during a 75 g oral glucose tolerance test (OGTT)
Note: In the absence of unequivocal hyperglycemia, confirm these criteria by repeat testing on a different day.  

 

 

  

 

 

 

 

 

 

 

 

 

 
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