Transferrin – what do your levels mean?
Have you had your transferrin levels measured and are unsure what the numbers mean? Here's a clear explanation of the normal range, what high or low levels can indicate, and when it makes sense to get tested.
What is the normal range for Transferrin?
What is the normal range for Transferrin?
The normal range for transferrin varies depending on age, sex, and physiological conditions. For adults, the reference interval typically ranges between 24 and 41 µmol/L. In pregnant women, values can increase throughout pregnancy, reaching up to 38-70 µmol/L at birth. For children under 1 year, the interval is 16-34 µmol/L. However, these values may vary slightly between laboratories due to differences in measurement methods and reference populations. Levels close to the thresholds can indicate early iron deficiency or iron overload, and it is important to interpret the results in conjunction with other blood tests such as ferritin and CRP.
What does a low level mean?
A low transferrin level can be caused by several factors, including chronic inflammatory conditions, liver insufficiency, malnutrition, or nephrotic syndrome. Symptoms can include fatigue, weakness, and paleness, which are often seen in anemia. Particularly vulnerable groups include individuals with chronic diseases, the elderly, and those with poor nutritional status. If transferrin levels are low, a doctor should be consulted for further investigation, which may include measuring ferritin, CRP, and iron saturation to identify the underlying cause.
What does a high level mean?
A high transferrin level is often seen in iron deficiency, where the body increases transferrin production to compensate for low iron levels. It can also occur under estrogen influence, such as with the use of birth control pills or during pregnancy. Symptoms of iron deficiency include fatigue, dizziness, and reduced concentration. If transferrin levels are elevated, iron status should be further investigated by measuring ferritin and transferrin saturation. For persistently high values or suspected underlying disease, a doctor should be consulted for a more comprehensive assessment.
Get your Transferrin level tested
At Celto, you can order a blood test for Transferrin directly online – without a referral from your doctor and without long waiting times. We have over 34 blood sample collection sites at public hospitals throughout Denmark, and your samples are analyzed in the same accredited laboratories used by the rest of the healthcare system. You will receive your results directly on sundhed.dk, just like all other blood tests from the public system.
How it works
When you order a blood test from Celto, you choose which markers you want to be tested – no doctor's referral necessary. After your purchase, you will receive an email with a link to our booking system, where you choose the time and place. The blood sample itself is taken by authorized healthcare professionals and typically only takes a few minutes.
Where you can get tested
Celto has over 34 blood sample collection sites at public hospitals and clinics across Denmark. You choose the location that suits you best among our partners, and appointments are typically available within a few days. Find your nearest sample collection site →
How you get your results
Your blood samples are analyzed in the same laboratories used by your own doctor and the rest of the healthcare system, with the exact same quality and the same tests. You will receive your results directly on sundhed.dk within a few business days, and Celto will also send an easy-to-understand review of your values so you know what the numbers mean.