Prenatal maternal serum/plasma free amino acids profile (qualitative screening)
This test measures certain amino acids in your blood to help monitor your health and the health of your developing baby during pregnancy. It may be used to check for conditions like metabolic disorders or to assess nutritional needs.
["This screening helps ensure your baby’s growth and development are supported by proper nutrition."]
Key facts at a glance
- LOINC
- 85718-5
- Short code
- Prenatal care location Mother
- Synonyms
- Prenatal care location Mother
- Category
- chemistry
- Sample
- serum
- Container
- Red-top tube (SST)
- Units
- N/A
- Fasting
- false
- Population
- adult
- Sex
- all
- Age range
- 18–65 years
- 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 a history of metabolic disorders, certain genetic conditions, or if you’re at higher risk for complications during pregnancy. It can also be part of routine prenatal care to monitor overall health and detect any imbalances early.
What to Expect Before the Test
You’ll typically have a small blood draw from a vein in your arm. The process is quick and usually doesn’t cause discomfort. No special preparation is needed, but you may be asked to fast for a few hours before the test if instructed by your provider.
What the Test Measures
This test screens for a range of amino acids in your blood, which are essential building blocks for your body and baby’s growth. Abnormal levels may indicate metabolic issues or other health concerns that need further evaluation.
What the Results Mean
Results may show normal levels of amino acids or indicate potential imbalances. If abnormalities are found, your provider may recommend additional testing or adjustments to your diet or treatment plan.
Clinical interpretation
How abnormal results are interpreted and what conditions they suggest.
Clinical Significance
Short name
Prenatal Amino Acid Screen
Frequently asked questions
How long will I need to wait for my results?
Can I eat or drink before this test?
What if my results show an abnormality?
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