Nothing: In general this would be a fasting blood test. This is not clearly defined, but lab professionals tell me that you should go at least 8 hours with nothing to eat or drink except water, plain tea or coffee and your medicines. There is also a test called an A1c, or average blood sugar that can be done after eating. For more info on proven screening tests, consider the Prevention Checklist app.
Answered 6/27/2014
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