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Autoimmune Antibody Profile to Fetal Autoantigens (Serum/Plasma)

Published: August 9, 2026Updated: August 16, 2026

This test measures antibodies in your blood that may react with proteins found in a fetus, helping assess potential risks of autoimmune-related complications during pregnancy.

Quick summary

["Helps identify antibodies linked to fetal autoimmunity, guiding pregnancy monitoring."]

Medically reviewed by WellAlly Editorial TeamLast reviewed August 16, 2026Editorial policy

Key facts at a glance

LOINC
62250-6
Short code
Imm Retics NFr Fetus Auto
Synonyms
Imm Retics NFr Fetus Auto
Category
chemistry
Sample
whole-blood
Container
Lavender-top (EDTA)
Units
N/A
Fasting
false
Population
adult
Sex
all
Age range
18–65 years
Method
automated-count
CPT
86430
Specimen volume
3 mL
Stability
Room temperature: 4h, Refrigerated: 24h
Hemolysis max
0
Lipemia max
0
Icterus max
0
TAT
4–24 hours
Order
routine

Why This Test Is Done

Your healthcare provider may recommend this test if you have a history of recurrent miscarriages, unexplained pregnancy complications, or autoimmune conditions. It helps determine whether certain antibodies are affecting fetal development.

What to Expect Before the Test

You’ll typically have a simple blood draw from a vein in your arm. No special preparation is needed, but inform your provider about any medications or recent illnesses.

Test Results and Interpretation

Results may show elevated levels of specific fetal autoantigen antibodies, which could indicate an increased risk of complications. Your provider will discuss findings with you in detail.

Common Conditions Monitored

This test supports evaluation for conditions like fetal anti-phospholipid syndrome, where antibodies may interfere with normal fetal development or pregnancy outcomes.

Clinical interpretation

How abnormal results are interpreted and what conditions they suggest.

◆Associated findings1

Short name

Fetal Autoantigen Antibody Screen

Frequently asked questions

What does a positive result mean?
A positive result means your blood contains antibodies that may react with fetal proteins. This doesn’t always mean a problem exists, but it may prompt further testing or specialized care.
Will this test affect my pregnancy plans?
Not directly, but it helps guide decisions about monitoring, treatments, or additional tests to support a healthy pregnancy.
How often will I need this test?
Frequency depends on your provider’s recommendations, often during pregnancy or if you have ongoing risk factors for autoimmune-related complications.
  1. 1
    MedlinePlus — Laboratory TestsSource
  2. 2
    Lab Tests OnlineSource
  3. 3
    Mayo Clinic — Tests & ProceduresSource

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.

Medical Disclaimer

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