Breast Milk Phenols, Mass Concentration — Age at Breastfeeding Cessation
Measures phenol-related compounds in breast milk to assess possible maternal exposure to phenol-containing products, chemicals, or occupational sources.
["This test can help determine whether phenol-related substances are present in breast milk."]
Key facts at a glance
- LOINC
- 61433-9
- Short code
- Age stopped breastfeed breast milk PhenX
- Synonyms
- Age stopped breastfeed breast milk PhenX
- Category
- liver
- Sample
- serum
- Container
- Red-top tube (SST)
- Units
- N/A
- Ref low
- 10
- Ref high
- 40
- Critical range
- — – 500 N/A
- Fasting
- false
- Population
- adult
- Sex
- all
- Age range
- 18–65 years
- Method
- phenx
- CPT
- 84484
- SNOMED
- 302774002
- 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 is this test?
This test measures phenol-related compounds in breast milk. It may be used to assess whether a breastfeeding parent has been exposed to phenols from household products, occupational chemicals, or other sources.
Why might I need this test?
The test may be ordered when there is concern about exposure to phenol-containing chemicals, especially in workplace or environmental exposure assessments. It may also be collected at a specified point after breastfeeding has stopped.
How is the test performed?
A breast milk sample is collected and analyzed in a laboratory using a validated chemical measurement method. The laboratory reports the concentration of the phenol-related compounds measured in the sample.
How do I prepare for the test?
Follow the collection and storage instructions provided by the laboratory or your clinician. If the test is intended to reflect a particular time after breastfeeding stopped, clarify the required collection timing before providing the sample.
Reference range
Adult: 10-40 U/LN/A
No special preparation required. Avoid fatty meals before the test if possible.
Clinical interpretation
How abnormal results are interpreted and what conditions they suggest.
A higher result may indicate recent or greater exposure to phenol-related substances. Results can vary with the timing of sample collection, recent use of phenol-containing products, and occupational or environmental exposure. Interpretation should consider these factors and any exposure-reduction advice from your clinician.
Short name
Breast Milk Phenols
Frequently asked questions
Does this test show whether someone is sick?
Can phenol-related substances come from common products?
How should a breast milk sample be collected?
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 17, 2026. · Read our editorial policy