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Mr. Lybrate-user you should have at least 8- 10 hrs. Of fasting after your dinner. Go to the lab and give fasting sample. (no milk, coffee or tea) only water is allowed. After giving the fasting sample have your medicine if they have tobe taken before food. Wait for 20 min before you have your breakfast. Then one and half hours later you have to give a second sample the ppbs. Hba1c does not require fasting state.
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