Lipids & Cardiovascular
Fibrinogen
Lipids & Cardiovascular
Blood clotting protein. Also an acute-phase inflammatory marker.
VAT-exempt medical service
Fibrinogen is a protein produced by the liver that is essential for blood clot formation. It is also a powerful inflammatory biomarker associated with cardiovascular disease and non-alcoholic fatty liver disease (NAFLD). Along with other cardiac risk markers such as high-sensitivity CRP, fibrinogen helps determine a person's overall cardiovascular risk. Wellth offers fibrinogen testing through accredited Swedish laboratories as part of a comprehensive approach to heart health assessment.
Testing fibrinogen helps identify cardiovascular and inflammatory risk factors early. It is particularly useful for individuals with a poor diet low in nutrient-rich foods, a personal or family history of cardiovascular disease, or those who want a comprehensive health check beyond standard lipid panels. Monitoring fibrinogen also allows you to track the impact of lifestyle changes and supplementation on your inflammatory status.
What a high value can mean
Elevated fibrinogen is an acute phase reactant that rises during inflammatory conditions or tissue damage. Chronically elevated levels may increase the risk of cardiovascular disease. Causes include stress, acute infection, coronary heart disease, cancer, stroke, trauma, smoking, pregnancy, cold temperatures, obesity, and inflammatory disorders. Smokers with diabetes are at particularly high risk. Symptoms of high fibrinogen include swelling, redness, and leg pain (potentially indicating deep vein thrombosis), chest pain, shortness of breath, and increased stroke or heart attack risk.
What a low value can mean
Low fibrinogen (hypofibrinogenaemia) may impair the body's ability to form stable blood clots. It can result from acute trauma, malnutrition, blood loss, certain medications, or liver conditions. Symptoms include excessive bleeding, easy bruising, frequent nosebleeds, prolonged bleeding from cuts, heavy menstrual periods, and in severe cases, spontaneous bleeding in joints or muscles.
No advance preparation is needed for this test. Do not exercise before the test, as this may affect results. Aim to take the test before 10:00 AM, as levels can vary throughout the day. Bring valid identification.
Order your test
Choose your test and pay online. Your lab referral is created straight away.
Give your sample
Visit any of our partner sampling locations. No appointment needed at most of them.
The lab analyses it
Your sample is analysed at an accredited Swedish laboratory.
Get your results
Your values appear in your account with reference ranges and an explanation of each marker.
Normal fibrinogen levels typically range from 2.0 to 4.0 g/L. Results within this range usually reflect normal clotting ability. Your lab report will include the specific reference range.
Yes. Several studies show that regular exercise, particularly strenuous exercise, can lower fibrinogen levels. Fish oil, dietary fibre, and B vitamins (B6, B9, and B12) may also help reduce levels.
Yes. Pregnancy can temporarily increase fibrinogen as an acute phase response. Levels should return to normal after delivery. Your healthcare provider will interpret results in this context.
Other inflammatory markers that complement fibrinogen include hsCRP, ferritin, ESR, homocysteine (preferably with folate and B12), TNF-alpha, and IL-6 for a comprehensive inflammatory assessment.