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Preparing for Laboratory Tests

Laboratory sampling requires a referral.

Many factors preceding the sampling affect the results of the tests. Therefore it is critical that you prepare for the tests according to the instructions. You will receive preparation instructions from your own care unit.

The results of the tests are sent directly to the doctors who prescribed them, and you can enquire the results from your own care unit.

Blood samples

During the day preceding blood sampling

  • you can eat normally
  • you must not drink alcohol

In the morning of the sampling you should not smoke, have coffee or tea or strain yourself.

Before tests that require fasting (marked with the letter f before the test code, e.g. fB-Gluk), you need to remain without food for 10 to 12 hours before sampling. You can drink one glass of water in the morning of the sampling.

Before sampling, it is recommended that you sit still for about 15 minutes to stabilise your blood flow.

If the blood sample is taken in order to estimate the content level of a medical substance, the medication should be administered only after the sampling, unless you have received instructions that tell you to do otherwise.

Urine samples

A reliable result is achieved by adhering to the instructions made and distributed by the laboratory. The urine sample can be taken in the laboratory, but if you take the sample at home, you can only store it in the sample container given to you by the laboratory or your care unit.

The basic urine test sample is best taken in the morning or when four hours have passed since urination.

See instructions for giving a urine sample.

In other urinary tests you need to adhere to the test specific instructions.

Päivitetty: 27/11/2019 12:48