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Fibrinogen Activity Blood Test

* This is not a home test kit. You will need to visit a local lab for testing.


Fibrinogen is a protein produced by the liver and secreted into the blood. Fibrinogen plays an important role in controlling bleeding during an injury.

Fibrinogen levels can be used to assess the effectiveness of thrombolytic therapy.

Fibrinogen is an acute-phase reactant and can often become significantly increased in conditions involving tissue damage, infection, or inflammation.

Increased levels may be seen in smokers, during pregnancy, and in women taking oral contraceptives.

Fibrinogen levels can be diminished in advanced liver disease.

Very high levels of heparin, presence of direct thrombin inhibitors, or fibrin breakdown products may falsely reduce fibrinogen levels because they interfere with the rate of clot formation. Lipemia or hemolysis may interfere with this assay.

This test should be used if you have received an abnormal Prothrombin Time (PT) or activated Partial Thromboplastin Time (aPTT)

Recommended For:

To diagnose fibrinogen deficiency, dysfibrinogenemia, disseminated intravascular coagulation (DIC) and to monitor the effectiveness of thrombolytic therapy.

Special Notes:

No special preparation is necessary prior to blood sample collection.

Tests Included:

Fibrinogen Activity (461)
Fibrinogen Activity (001610)

Estimated Turn Around For Results:

2-10 Business Days

For an exact turnaround time for results, please contact us at Personalabs and we will contact the lab on your behalf as turnaround times vary depending on testing location or lab testing provider.

Additional information


LabCorp, Quest

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Results can be provided in as little as 24-48 hrs. For more complex tests, please contact us for turn around times.


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