Fibrinogen Test
A clotting protein. Also rises with inflammation as an acute-phase reactant.
What is Fibrinogen?
A clotting protein. Also rises with inflammation as an acute-phase reactant.
Fibrinogen Reference Range
These are the typical adult reference ranges used by major US labs. Your report will include the specific range used by the lab that processed your sample.
| Population | Range |
|---|---|
| age 18+ | 200 – 400 mg/dL |
Reference ranges are educational. Always interpret your result with the specific range printed on your lab report and discuss anything outside the range with a clinician.
What your Fibrinogen result may mean
Often reflects inflammation, infection, or pregnancy.
Can reflect liver disease, severe bleeding, or rare genetic factor deficiency.
Educational only — not a diagnosis. Many factors can influence a single result. Discuss anything that concerns you with a healthcare provider.
Sources
Frequently asked
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