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Pitkäaikainen sokeri eli sokerihemoglobiini B-HbA1c

Long-term glucose levels, hemoglobin A1C, B-HbA1c

Hemoglobin A1C indicates the glycated hemoglobin (long-term glucose levels) in the blood. Hemoglobin A1C, or glycated hemoglobin, shows your average blood glucose levels over the previous 2–8 weeks.

Hemoglobin A1C, long-term glucose levels

Hemoglobin A1C indicates the glycated hemoglobin (long-term glucose levels) in the blood. Hemoglobin A1C, or glycated hemoglobin, shows your average blood glucose levels over the previous 2–8 weeks.

What is hemoglobin A1C (B-HbA1c)?

Hemoglobin A1C indicates the glycated hemoglobin (long-term glucose levels) in the blood. Elevated blood glucose levels over one day cannot affect your long-term blood glucose levels because your HbA1c value reflects your blood glucose levels over the past 2–8 weeks. You can affect your blood glucose levels with general healthy dietary habits, such as regular meals and healthy food choices. 

Hemoglobin A1C is essentially glucose that is slowly attached to the hemoglobin molecules of red blood cells. The rate at which glucose attaches depends on the overall amount of glucose in the blood: the higher the blood glucose, the more glucose attaches to the hemoglobin molecules. 

How can I get my B-HbA1c tested?

You can order the long-term sugar B-HbA1c as a single test from Puhti’s online store. Add the desired products to the shopping cart and complete all the tests at once.

No sampling fee for orders over EUR 40! A sampling fee of EUR 10 will be added to smaller orders. 

B-HbA1c is included in the following test packages:

First, order the tests you need via Puhti. You do not need a doctor’s referral. You can visit one of our many laboratories in Finland. Most of the laboratories also serve customers without an appointment. You will receive an easy-to-read results report.

Reference values for B-HbA1c

Reference values for hemoglobin A1C (B-HbA1c) are 20–42 mmol/mol.  

The designation mmol/mol refers to millimoles per mole. 

Reference levels may vary depending on the laboratory and the test analysis method. Puhti samples are taken and analysed at the laboratories of Mehiläinen. 

Recommended values for hemoglobin A1C (B-HbA1c)

In the table below, you can see the recommended values for hemoglobin A1C (B-HbA1c). The last column indicates the test result value as the percentage of the hemoglobin molecules. 

SituationB-HbA1c valuePercentage
Normal20-42 mmol/mol6%
In the treatment of diabetes mellitus (tablet) <53 mmol/mol<7%
In insulin therapy 53-58 mmol/mol<7-8%
In dietary therapy <42 mmol/mol<6%
If necessary, use the calculator in the Duodecim Terveyskirjasto health library to convert the results of the Puhti tests to a percentage. The calculator indicates the HbA1c level given as a percentage in mmol/mol and the level given as a mmol/mol unit in percentage, respectively.

Goals of diabetes treatment are set individually. Values in the table are approximate. If your doctor has set personal recommended values for you, always follow those. 

Käypä hoito guidelines recommend testing people with type 2 diabetes every 6 to 12 months. 

What is causing abnormal results in hemoglobin A1C?

Abnormal results in hemoglobin A1C are usually due to diabetes. However, the following reasons may also contribute to an exceptionally high or low results:

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