Know More About This Test
Fibrinogen is a plasma protein produced by the liver.
Plays a central role in blood clot formation.
Converted to fibrin during coagulation.
Acts as an acute-phase reactant.
Important marker in bleeding and thrombotic disorders.
Why Is This Test Recommended?
Evaluation of bleeding disorders
Suspected clotting abnormalities
Monitoring disseminated intravascular coagulation (DIC)
Cardiovascular risk assessment
Liver disease evaluation
Understanding Fibrinogen Levels
Normal range: ~200–400 mg/dL
Low levels increase bleeding risk
High levels indicate inflammation or thrombosis risk
Elevated in infections and pregnancy
Reduced in severe liver disease
Symptoms or Conditions Requiring Testing
Unexplained bleeding
Excessive clot formation
Post-surgical bleeding
Chronic inflammatory conditions
Liver dysfunction
Preparation and Procedure
Fasting not mandatory
Blood drawn into special citrate tube
Avoid recent anticoagulant changes
Simple venipuncture
Minimal discomfort
Interpretation & Follow-Up
Low fibrinogen â bleeding tendency
High fibrinogen â cardiovascular risk
Correlate with PT, APTT
Repeat testing monitors therapy
Guides transfusion decisions
FAQs
Is fibrinogen part of clotting profile? Yes, fibrinogen is a key component of a standard clotting profile, as it directly influences the final stages of coagulation and is often measured alongside tests like PT and aPTT to assess overall hemostatic function.
Can infection raise levels? Yes, infections can significantly raise fibrinogen levels because it acts as an acute-phase reactant, increasing during inflammation to support clot formation and immune response, which is why elevated results are common in bacterial or viral illnesses.
Is fasting required? No, fasting is not required for fibrinogen testing, as levels are primarily influenced by liver production and inflammation rather than recent food intake, allowing for flexible scheduling.
Is it liver-related? Yes, fibrinogen is closely liver-related, since it is synthesized exclusively by the liver, and low levels often signal impaired liver function, such as in cirrhosis or acute hepatitis.
Can levels normalize? Yes, fibrinogen levels can normalize with appropriate treatment of the underlying cause, such as resolving an infection, managing liver disease, or adjusting medications, typically within days to weeks depending on the severity.
