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Amniotic Fluid Cell Count

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

This test measures the number of cells present in amniotic fluid, which is the fluid surrounding a fetus during pregnancy. It may be used to assess fetal well-being or detect potential complications.

Quick summary

["A cell count helps monitor amniotic fluid health before birth."]

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

Key facts at a glance

LOINC
64092-0
Short code
Cells analyzed Amn
Synonyms
Cells analyzed Amn
Category
chemistry
Sample
fluid
Container
Sterile tube
Units
N/A
Fasting
false
Population
adult
Sex
all
Age range
18–65 years
Method
molgen
CPT
86038
Specimen volume
2-5 mL
Stability
Room temperature: 2h, Refrigerated: 24h
Hemolysis max
300
TAT
4–24 hours
Order
routine

Why Is This Test Done?

Doctors may order an amniotic fluid cell count to evaluate the health of the amniotic fluid, which can indicate risks such as infection, fetal distress, or other pregnancy-related concerns. It’s often performed during prenatal care or when monitoring high-risk pregnancies.

What Does the Result Mean?

The test result provides a count of cells in the fluid, which can help identify abnormalities like high cell counts (possible fetal bleeding or infection) or low counts (potential issues with fluid circulation). Interpretation depends on clinical context and your healthcare provider’s assessment.

How Is the Test Performed?

Amniotic fluid is typically collected via an amniocentesis—a small needle inserted into the uterus under ultrasound guidance. The fluid is then sent to the lab for analysis. The cell count is measured using microscopic examination.

What Are Common Causes for This Test?

This test may be recommended if you have a high-risk pregnancy (e.g., gestational diabetes, preterm labor), if there are signs of fetal distress, or if your doctor suspects conditions like fetal hemorrhage or infection.

Clinical interpretation

How abnormal results are interpreted and what conditions they suggest.

◆Associated findings1

Short name

Amniotic Fluid Cell Count

Frequently asked questions

What does an abnormal cell count mean in amniotic fluid?
An abnormal cell count could signal potential issues like fetal bleeding (e.g., from trauma or placental problems), infection, or other pregnancy-related complications. Your doctor will discuss results with you and may recommend additional tests or monitoring.
How soon after the test can I expect results?
Results from an amniotic fluid cell count are usually available within 1–3 business days, depending on lab processing times. Your healthcare provider will contact you once they have the findings.
Is this test painful or risky?
The procedure itself involves a small needle inserted into the uterus, which may cause mild discomfort or cramping. However, it is generally considered safe when performed by a trained professional. Risks are rare but may include infection or preterm labor.
  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