Fetal Fibrinogen Level (Longest Fibrinogen Fragment from Gestational Assessment)
This test measures specific fragments of fibrinogen, a protein involved in blood clotting, often analyzed during pregnancy to assess placental health or fetal well-being.
["Helps monitor blood clotting and potential risks during pregnancy."]
Key facts at a glance
- LOINC
- 11971-9
- Short code
- Fet Fibula Length Est from GA.Merz87
- Synonyms
- Fet Fibula Length Est from GA.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
- estimated-from-gestational-age-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 This Test Might Be Ordered
Your healthcare provider may recommend this test if you’re experiencing complications during pregnancy, such as high blood pressure (preeclampsia), placental issues, or signs of fetal distress. It may also be used in research or specialized clinical settings to evaluate coagulation-related conditions in pregnancy.
What to Expect Before the Test
No special preparation is typically needed. You may provide a blood sample (whole blood) during a routine clinic visit. If you’re undergoing a specific procedure (like an amniocentesis), your provider will guide you on timing.
What the Test Results Mean
Results may indicate abnormal fibrinogen fragment levels, which could signal potential bleeding risks, placental dysfunction, or other pregnancy-related concerns. Your provider will interpret results in the context of your medical history and symptoms.
Common Causes for Testing
This test is less commonly performed than standard pregnancy labs but may be used in high-risk pregnancies, research studies, or specialized diagnostic workflows to assess fibrin-related pathways.
Clinical interpretation
How abnormal results are interpreted and what conditions they suggest.
Fibrinogen fragments can reflect placental function, vascular health, or coagulation disorders. Elevated or altered levels may correlate with risks like preterm labor, placental abruption, or maternal bleeding complications. Always discuss results with your healthcare provider for personalized insights.
Short name
Fibrinogen Fragment Profile
Frequently asked questions
Will this test affect my medication?
How soon will I get my results?
Is this test painful?
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