Obesity-related biomarkers in maternal serum during pregnancy (trimester-specific screening)
This test measures certain biomarkers in your blood to assess how obesity may affect your health and your baby’s development at different stages of pregnancy.
["Early detection helps guide personalized prenatal care to support both mother and baby’s well-being."]
Key facts at a glance
- LOINC
- 32418-6
- Short code
- OB trimester Stated
- Synonyms
- OB trimester Stated
- Category
- chemistry
- Sample
- serum
- Container
- Red-top tube (SST)
- Units
- N/A
- Fasting
- false
- Population
- adult
- Sex
- all
- Age range
- 18–65 years
- Method
- stated
- 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 Is Done
Your healthcare provider may recommend this test if you have obesity or are at higher risk for pregnancy-related complications. It helps monitor how your body’s chemistry changes across different trimesters, especially in relation to weight-related health factors.
What to Expect Before the Test
You’ll typically have a simple blood draw, usually done in a clinic or lab. No special preparation is needed, but fasting may be advised for some components. The test may be done at specific trimesters (e.g., first, second, or third) based on your provider’s recommendations.
What the Results Mean
Results may include measurements of substances linked to metabolic health, inflammation, or hormonal balance. These are compared to trimester-specific reference ranges to identify any deviations that could signal risks or inform care adjustments.
Common Conditions Monitored
This test may help identify risks for conditions like gestational diabetes, high blood pressure (pre-eclampsia), or metabolic disorders that obesity can influence. Early awareness allows for proactive interventions.
Clinical interpretation
How abnormal results are interpreted and what conditions they suggest.
Clinical significance: Biomarkers tracked in this test provide a snapshot of how obesity-related factors (e.g., insulin resistance, inflammation) evolve during pregnancy. Abnormal results may prompt additional testing, lifestyle recommendations, or monitoring to optimize outcomes for both mother and baby.
Short name
Trimester-Specific Maternal Obesity Biomarker Profile
Frequently asked questions
Will I need to fast before this test?
How often will I need this test during pregnancy?
What if my results are outside the expected range?
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