Hello! Tell or Say please, it is necessary to me zdat a blood on Saccharum on toshchah...

[Irina]

Hello!
Tell or Say please, it is necessary to me zdat a blood on Saccharum on toshchah, for how much hours before delivery of the analysis it is necessary to eat?

[Diabetolog]

Dear Irina! On an empty stomach is 12 hours from last reception of nutrition.