Fetal Liver Diameter Measurement (from Gestational Age)
This test measures the size of your baby’s liver during pregnancy to assess fetal development and overall health.
["A fetal liver measurement helps monitor growth and detect potential developmental concerns early."]
Key facts at a glance
- LOINC
- 11845-5
- Short code
- Fet Liver Diam.long.mean Est from GA
- Synonyms
- Fet Liver Diam.long.mean Est from GA
- 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
- 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 healthcare provider may order this test if you’re at higher risk for complications like fetal growth restriction, chromosomal abnormalities, or other conditions affecting fetal development. It’s often part of routine ultrasounds during pregnancy, especially in the second trimester.
What Does the Test Involve?
You’ll undergo an ultrasound, where a special device sends sound waves to create images of your baby’s organs. The technician measures the liver’s longest diameter to compare it with expected fetal growth standards based on your due date.
How Is the Result Interpreted?
Results are compared to standard fetal liver size charts. A measurement outside typical ranges may signal potential issues, prompting further evaluation (e.g., additional ultrasounds, genetic testing, or specialist consultations).
What Are Common Reasons for Abnormal Results?
Abnormal liver measurements could indicate conditions like intrauterine growth restriction, congenital anomalies, or exposure to certain risks (e.g., maternal health conditions). Always discuss findings with your provider for personalized guidance.
Clinical interpretation
How abnormal results are interpreted and what conditions they suggest.
Fetal liver size is a critical marker in prenatal care, as it reflects fetal metabolism, organ development, and overall well-being. While not all deviations are urgent, early detection allows for timely interventions to support fetal health.
Short name
Fetal Liver Size Check
Frequently asked questions
Will I need to prepare for this test?
How long does the ultrasound take?
Can I get the results immediately after 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