T1D - HbA1c
HbA1c TEST
What is the HbA1c test?
HbA1c is the name of the test used to assess your blood glucose control over the last two to three months.
Why is it called a HbA1c?
Hb stands for haemoglobin. This is the part of our blood which carries oxygen from the lungs to all parts of the body. HbA takes its name from the red colouring in the haemoglobin. HbA1c consists of HbA and glucose which are combined together in the red blood cells.
What happens?
A red blood cell lives for about 120 days. During the red blood cell’s life-span, glucose attaches to its haemoglobin. HbA1c is the haemoglobin in the red blood cells that has glucose attached to it. If the blood glucose levels are high the HbA1c will be high. If the blood glucose levels are low, the HbA1c will be low.
Why do this test?
If your HbA1c is monitored at regular intervals, at least every three months, the results will provide a good summary of how your blood glucose control has been throughout the year. This information can be used to give you valuable advice on adjusting your insulin and, or your lifestyle. There is convincing scientific evidence and studies that good diabetes control can postpone and prevent complications.
What do the results mean?
HbA1c results are expressed as mmol/mol
Normal value – person without diabetes: Below 42 Risk of hypoglycaemia (in diabetes) :Below 42 Ideal diabetes control: 42-53 Acceptable diabetes control: 53-58 Need to discuss your current management: 59-75 High – increased risk of complications: Above 75 |
Is the HbA1c test just used to check up on me?
No, your HbA1c is most valuable to you. You can use it to help you make decisions about your diabetes management and lifestyle. These decisions may be that you need to try and tighten your blood glucose control or that you can afford to relax your control a little and allow yourself more flexibility.
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