Diabetes is a group of metabolic disorders characterised by a dysfunction in the pancreatic production of insulin and high blood sugar levels (blood glucose concentration) for long periods of time. Possible abnormalities are detected by performing more than one blood glucose test in the laboratory, the results of which are compared to blood glucose reference values.

Name and abbreviation of the tests: GLUCOSE fP-Gluk and HAEMOGLOBIN-A1c B -HbA1c

The blood glucose test measures the level of glucose in a person’s blood after fasting. If the fasting blood sugar level is elevated compared to the blood sugar reference values, the person should contact a healthcare professional to assess the need for further examinations. However, the diagnosis for diabetes cannot be based on a single blood glucose test, but instead, several blood glucose tests should be taken.

Haemoglobin A1c reflects long-term glucose balance. The test is used to ensure a proper treatment of diabetes.

Blood sugar reference values in the GLUCOSE fP-Gluk test are 4.0–6.1 mmol/l and in the HAEMOGLOBIN-A1c B -HbA1c test 20–42 mmol/mol (4.0–6.0%).

Test results

  • Reference values

    GLUCOSE (fasting) fP-Gluk

    • 4.0–6.1 mmol/l


    • 20–42 mmol/mol (4.0–6.0%)

About the test

  • General

    The blood glucose measurement (fP-Gluk) is performed from a blood sample collected after 10–14 hours of fasting. Do not eat or drink anything other than water for 10–14 hours before sample collection. In the morning, you can take your medicines as usual.

  • Who will interpret my examination results?

    Please note that the doctor in charge of the treatment is always responsible for interpreting the results. Consult your doctor if you have any questions regarding the examination results.