Fibrinogen Quantification by Turbidimetric Method (Serum)
This test measures the amount of fibrinogen, a protein in your blood that helps form clots. It’s important for understanding your blood’s ability to clot properly.
["Fibrinogen helps control bleeding and supports blood vessel repair—low levels may increase bleeding risk, while high levels could raise clot formation concerns."]
Key facts at a glance
- LOINC
- 30902-1
- Short code
- Fibrinogen PPP Heat Denat-mCnc
- Synonyms
- Fibrinogen PPP Heat Denat-mCnc
- Category
- coagulation
- Sample
- plasma
- Container
- Lavender-top (EDTA) or Green-top (Heparin)
- Units
- N/A
- Ref low
- 200
- Ref high
- 400
- Critical range
- 60 N/A – —
- Fasting
- false
- Population
- adult
- Sex
- all
- Age range
- 18–65 years
- Method
- heat-denaturation
- CPT
- 85384
- SNOMED
- 47279000
- Specimen volume
- 5 mL
- Stability
- Room temperature: 4h, Refrigerated: 24h, Frozen: 7d
- Hemolysis max
- 500
- Lipemia max
- 1000
- Icterus max
- 500
- TAT
- 4–24 hours
- Order
- routine
Why Is This Test Done?
Your doctor may order this test if you have symptoms like easy bruising, excessive bleeding, or a history of clotting disorders. It’s also used to monitor conditions like liver disease, pregnancy, or after surgeries that affect clotting.
What to Expect Before the Test
No special preparation is needed. You’ll provide a blood sample, usually drawn from your arm. Avoid aspirin or blood thinners for 48 hours before testing if your doctor recommends it.
What the Results Mean
Results help assess your blood’s clotting capacity. Very low levels may suggest bleeding disorders, while very high levels could indicate inflammation or other conditions. Your doctor will interpret results in relation to your health.
Common Conditions Monitored
This test is often checked in patients with liver disease (since the liver produces fibrinogen), pregnancy, or those taking blood thinners. It may also be used after trauma or surgery to track clotting changes.
Reference range
Adult: 200-400 mg/dLN/A
Inform your healthcare provider if you are taking blood thinners. No special preparation required.
Clinical interpretation
How abnormal results are interpreted and what conditions they suggest.
Clinical Significance: Fibrinogen plays a critical role in blood clotting and wound healing. Abnormal levels can signal underlying health issues, such as liver dysfunction, infections, or inherited bleeding disorders. Your doctor will use these results alongside other factors to guide treatment decisions.
Short name
Fibrinogen Level
Frequently asked questions
What does a low fibrinogen level mean?
How long does it take to get my fibrinogen test results?
Can I eat or drink before this test?
Sources
- 1
- 2Lab Tests OnlineSource
- 3
Click any link to access the full source. PubMed Central (PMC) links provide free full-text access.
This information is for educational purposes only and is not a substitute for professional medical advice, diagnosis, or treatment.
This content is for general informational and educational purposes only and is not a substitute for professional medical advice, diagnosis, or treatment. Always seek the guidance of a qualified healthcare provider with any questions you have about a medical condition, and never disregard professional medical advice or delay seeking it because of something you read here.
If you think you may have a medical emergency, call your local emergency number or go to the nearest emergency department immediately.
Medically reviewed by WellAlly Editorial Team Last reviewed August 17, 2026. · Read our editorial policy