Fibrinogen is a protein made by the liver that is essential for blood clot formation. It is converted to fibrin during the clotting process.
Category: Coagulation
Also known as: fibrinogen, factor i, fibrinogen activity
Reference range: 200–400 mg/dL (Source: ABIM)
Standard unit: mg/dL
High values may indicate
High fibrinogen levels may indicate acute inflammation, infection, tissue damage, cardiovascular disease risk, pregnancy, or certain cancers.
Low values may indicate
Low fibrinogen levels may indicate liver disease, disseminated intravascular coagulation (DIC), inherited fibrinogen deficiency, or excessive fibrinolysis.
Source: MedlinePlus, U.S. National Library of Medicine
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