Fibrinogen (Serum or Plasma Concentration)
This test measures the amount of fibrinogen, a protein in your blood that plays a key role in blood clotting. It helps assess your risk of bleeding or clotting disorders.
["Fibrinogen levels can indicate how well your blood clots normally."]
Key facts at a glance
- LOINC
- 73384-0
- Short code
- Fenofibrate ind plt IgM SerPl Ql FC
- Synonyms
- Fenofibrate ind plt IgM SerPl Ql FC
- Category
- hematology
- Sample
- serum
- Container
- Red-top tube (SST)
- Units
- N/A
- Fasting
- false
- Population
- adult
- Sex
- all
- Age range
- 18–65 years
- Method
- flow-cytometry
- CPT
- 82784
- 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 This Test Might Be Ordered
Your doctor may recommend this test if you have symptoms of bleeding problems (like easy bruising or excessive bleeding), signs of clotting disorders (such as blood clots in veins or arteries), or if you’re undergoing surgery or a procedure that could affect your blood clotting. It may also be part of a general health check or evaluation for conditions like liver disease or certain blood disorders.
What to Expect Before the Test
No special preparation is usually needed, but you may be asked to fast for a few hours before the test if it’s drawn from your vein. If it’s a urine or other specimen test, follow any specific instructions your doctor gives you. Avoid smoking or strenuous activity for 30 minutes before the draw if advised.
What Happens During the Test
A healthcare professional will draw a small amount of blood from a vein in your arm. You may feel a slight pinch, but it’s usually over quickly. If you’re nervous, let your doctor or nurse know—they can offer ways to make it more comfortable.
What the Results Mean
Your results will be compared to a general reference range provided by your lab. Very high or very low levels can signal underlying health issues, but individual results depend on your overall health and medical history. Your doctor will discuss the results with you in detail.
Clinical interpretation
How abnormal results are interpreted and what conditions they suggest.
Low fibrinogen levels may suggest bleeding disorders, liver disease, or certain infections. High levels could be linked to inflammation, pregnancy, or certain blood disorders. Chronic conditions like liver disease or kidney problems might also affect fibrinogen. Always discuss your results with your healthcare provider to understand their implications for your health.
Short name
Fibrinogen Level
Frequently asked questions
How long does it take to get my results?
Can I eat or drink before this test?
Will I feel any pain or discomfort during the 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 16, 2026. · Read our editorial policy