6-12 hours fasting is required ( for the completion of glucose burning sugar two hours after eating: hours are calculated from the beginning of a meal (and to start insulin secretion with the beginning of a meal) and requires the completion of a meal in 10 minutes at the most. Treatment is taken unless there are special instructions from the physician drinking only water is permitted during the two hours.

the patient is asked to take (150 gm) carbohydrates for 3n consecutive days before the implementation of the test 10-16 hour fasting sample is taken then a glucose dose is administrated and the other samples are taken afterwards and no food or drink are allowed during analysis except only for water with smoking inhibition .
special instructions must be registered whether :the patient is pregnant or not.and whether the patient is on diabetic treatment or not in addition to whether the treatment was taken on the analysis day or not .

Fasting is required from 10 to 12 hours (cases are accepted from 10-14 hours) in order for the absorption of fat into the blood and a stable proportion. It is allowed to drink water only during the fasting period and refrain from smoking during the fasting period.

Fasting is required from 6 to 16 hours.

Fasting is required from 6 to 8hours.

10-hour fasting is required and cessation of some drugs as aspirin, anti-inflammatory drugs, and anticoagulants

early morning sample is taken 5-6 days after the missed period. preferably first urine in the morning because the pregnancy hormone is more concentrated , with restriction of fluid intake from the previous evening If the result is negative blood test is suggested because this test is more sensitive.

It is required to wash the hand and the genitals with water and soap, and to cleanse the urine opening with the disinfectant (Dettol), then wash it again with water to remove the excess disinfectant, then empty the first urine points in the toilet and put the rest in the sterile container provided by the lab, as it is preferable to refrain from taking the antibiotic for 48 hours in order to We give the microbe an opportunity to grow.

Total abstinence from intercourse or masturbation for 2-7 consecutive days. Sample is better given in the lab;keep the sample away from water or soap. Deliver the sample to the lab within 20 minutes.

require abstinence from sexual intercourse for 4 days prior to analysis, booking inside the lab an hour before the test. A urine sample is taken before prostate massage and a urine sample again after prostate massage

Serum PSA refrain patient 10 days prior to analysis for laparoscopy or catheter) because this will affect the result of the analysis (only if there is another view of the physician.

Not in diaper avoid mineral oil, Bismuth, Magnesium.
Wait 1 week after barium or laxative intake.

Refrain from antibiotics for at least 48 hours before testing. Sample must be delivered to the lab within 1 hour. Samples contaminated with water, soap, tissue or paper will be rejected.

Fasting for 6-8 hours. The blood sample must be taken in the morning after the end of the menstrual cycle and prior to the start of treatment with iron or blood transfusion.

the analysis is not to be conducted for 3 months. After blood transfusion or crises.