Fibrinogen (Serum) by Clia
This test measures the amount of fibrinogen in your blood serum, a protein essential for blood clotting.
["Fibrinogen helps your blood clot properly and supports wound healing."]
Key facts at a glance
- LOINC
- 11942-0
- Short code
- GA from tib len.Merz87
- Synonyms
- GA from tib len.Merz87
- Category
- chemistry
- Sample
- serum
- Container
- Red-top tube (SST)
- Units
- N/A
- Fasting
- false
- Population
- adult
- Sex
- all
- Age range
- 18–65 years
- Method
- us-estimated-from-tibia-length-merz
- 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 to evaluate blood clotting function, check for conditions like liver disease (which affects protein production), or monitor treatment for bleeding disorders. It can also help diagnose or monitor conditions like disseminated intravascular coagulation (DIC) or certain inflammatory diseases.
What Does a Low or High Level Mean?
Low levels of fibrinogen may suggest liver problems, severe infections, or conditions that cause excessive bleeding. High levels could indicate inflammation, pregnancy, or certain blood disorders.
How Is the Test Performed?
A blood sample is drawn from a vein, usually in your arm. The blood is then processed to separate serum, which is tested for fibrinogen levels using a sensitive chemical reaction detected by a machine.
What Are Common Conditions Monitored With This Test?
This test is often used alongside other blood tests to assess overall clotting health, especially in patients with suspected bleeding disorders, liver disease, or those undergoing treatments that affect blood clotting.
Clinical interpretation
How abnormal results are interpreted and what conditions they suggest.
Fibrinogen plays a critical role in the body’s clotting process. Abnormal levels can indicate underlying health issues that may require medical attention, such as bleeding risks or clotting disorders. Your doctor will interpret results in the context of your overall health and symptoms.
Short name
Fibrinogen
Frequently asked questions
What does a normal range mean for this test?
How often should I get this test?
Can lifestyle changes affect fibrinogen levels?
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 16, 2026. · Read our editorial policy