I grew up in one of the European countries. There you need to be hungry only to determine the level of glucose. When tested for other indicators, patients are not tormented. And laboratories take blood until 2 pm. And then they give two tokens for the coffee machine. But I took hot chocolate. The corridor smelled good coffee and something sterile.
Dear author of the question! To determine the level of glucose in the blood, the laboratory takes venous blood. To learn more about the analysis and the rules for preparing for it, you can follow the link, to establish the current cost, do not forget to select your city at the top of the page