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Phenotypic screening for multiple pregnancy-related conditions (e.g., metabolic, genetic, or biochemical markers)

Published: August 9, 2026Updated: August 17, 2026

This test evaluates certain substances or traits in your blood or other bodily fluids to help assess potential health risks or conditions related to pregnancy, such as genetic, metabolic, or biochemical factors.

Quick summary

["Helps identify possible genetic, metabolic, or biochemical concerns during pregnancy for early monitoring and support."]

Medically reviewed by WellAlly Editorial TeamLast reviewed August 17, 2026Editorial policy

Key facts at a glance

LOINC
64724-8
Short code
Multiple pregnancy PhenX
Synonyms
Multiple pregnancy PhenX
Category
chemistry
Sample
serum
Container
Red-top tube (SST)
Units
N/A
Critical range
0.5 N/A – —
Fasting
false
Population
adult
Sex
all
Age range
18–65 years
Method
phenx
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

What This Test Measures

This screening may include tests for a range of substances, such as specific proteins, enzymes, or metabolites that can provide insights into how your body is responding to pregnancy. Some tests may measure the concentration of certain substances in your blood, plasma, or urine to detect abnormalities early.

Why It’s Done During Pregnancy

Doctors may recommend this screening if you have a history of pregnancy complications, certain genetic conditions, or if you’re at higher risk for specific issues like metabolic disorders or genetic syndromes. It can also be part of routine prenatal care to monitor overall health and identify any potential concerns early.

Sample Collection and Preparation

A blood sample is most commonly collected for this test. You may also provide urine or other fluids depending on the specific tests included. The sample is typically processed in a lab to analyze the substances of interest.

Common Conditions Monitored

This screening may help identify conditions like certain metabolic disorders (e.g., phenylketonuria), genetic disorders, or biochemical imbalances that could affect your pregnancy. It can also assess markers for conditions that may impact fetal development or maternal health.

Clinical interpretation

How abnormal results are interpreted and what conditions they suggest.

Clinical Significance

Short name

Pregnancy Phenotype Screen

Frequently asked questions

How soon will I get my results?
Results are usually available within a few days to a couple of weeks, depending on the complexity of the tests. Your healthcare provider will discuss the findings with you in detail and explain next steps if any abnormalities are detected.
What does a positive result mean?
A positive result may indicate the presence of certain markers that warrant further evaluation by a specialist, such as a genetic counselor or obstetrician. This does not always mean a problem exists, but it may prompt additional testing or monitoring.
Can I eat or drink before this test?
For blood tests, you may be asked to fast for a few hours before the sample is collected. Follow your healthcare provider’s instructions regarding food and drink. For urine tests, no special preparation is usually needed unless specified otherwise.
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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 17, 2026. · Read our editorial policy