Fasting is required from 6 to 8 hours, and it is allowed to drink water only during the fasting period.

The two hours are required to be counted from the start of eating, and food is required to be eaten within the first ten minutes of the beginning of the two hours. It is not allowed to eat any food during the two hours, only water and treatment, if any, is allowed. Please come to the laboratory at least a quarter of an hour before the end of the two hours.

the sample will be taken from the fasting patient, then he/she takes a glucose dose
provided by the laboratory and is calculated according to the weight of each patient, then samples are taken after half an hour, then an hour, then two hours, then three hours after taking the glucose dose. It is not allowed to eat any food or drink during the working period of the curve. Only water and treatment are allowed.

Fasting is required from at least 12-14 hours and it is allowed to drink water only during the fasting period.

It is required to abstain from sexual intercourse or a wet dream for four consecutive days, and it is preferable to give the sample in the laboratory and preferably the first droplets in the bottle specified for that matter.