Skip to content

4-tert-Butylphenol Urine Test

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

This test measures the level of 4-tert-butylphenol, an industrial chemical, in your urine to assess exposure.

Quick summary

{"Measures 4-tert-butylphenol levels in urine","Used to monitor occupational chemical exposure","Helps assess health risks from environmental or workplace exposure"}

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

Key facts at a glance

LOINC
35586-7
Short code
4TBP Urine
Synonyms
4-tert-butylphenol Ur-mCnc
Category
chemistry
Sample
urine
Container
Sterile urine container (30-60 mL capacity)
Units
N/A
Ref low
0
Ref high
1
Fasting
false
Population
adult
Sex
all
Age range
≥ 18 years
Method
Gas Chromatography-Mass Spectrometry (GC-MS) or Liquid Chromatography-Tandem Mass Spectrometry (LC-MS/MS)
CPT
80375 (Toxicology: Non-drug substance, qualitative or quantitative)
SNOMED
74834009 | Phenolic compound measurement (observable)
Specimen volume
Minimum 5 mL, preferably 10-15 mL
Stability
Room temperature: 24-48 hours; Refrigerated (2-8°C): 5-7 days; Frozen (-20°C or below): 30+ days
Hemolysis max
0
Lipemia max
0
Icterus max
0
TAT
72–168 hours
Order
routine

What is this test?

The 4-tert-butylphenol urine test measures the amount of 4-tert-butylphenol, an industrial chemical compound, in your urine sample. This chemical is commonly used in the production of resins and plastics, and it also serves as an ultraviolet light absorber in various products. Workers in certain industries, such as plastics and resin manufacturing, may be exposed to this substance during production processes, and measuring it in urine helps assess the level of that exposure.

How is the test performed?

A urine sample is collected in a sterile container, typically in the morning for most accurate results. The sample is then sent to a laboratory where specialized equipment measures the concentration of 4-tert-butylphenol. No special preparation is usually required, but follow your healthcare provider's specific instructions.

Why might I need this test?

This test is primarily ordered for occupational health monitoring. If you work in industries involving plastic manufacturing, chemical production, or resin synthesis, your employer or healthcare provider may recommend this test to check for exposure levels. It helps ensure workplace safety and early detection of potential health concerns.

Reference range

Not detected or < 1.0 μg/L (laboratory-specific cutoff); Results reported as ng/mL or μg/g creatinineN/A

Specimen: urine

Collect random urine specimen in sterile, labeled container; No special preparation required; Inform laboratory of occupational exposure history; Avoid contamination of urine sample

Clinical interpretation

How abnormal results are interpreted and what conditions they suggest.

Elevated 4-tert-butylphenol levels in urine may indicate recent exposure to this industrial chemical. The test is mainly used for occupational health surveillance to monitor workers in high-risk industries. While the health effects of low-level exposure are not fully understood, high levels may be associated with skin irritation, respiratory issues, or other concerns. Regular monitoring helps identify excessive exposure early and allows for appropriate workplace safety measures.

Frequently asked questions

Is the test painful?
No, this is a simple urine test that is non-invasive and painless. You just need to provide a urine sample in a container.
How long does it take to get results?
Results typically take 1-3 days, depending on the laboratory. Your healthcare provider will inform you when results are ready.
What do abnormal results mean?
Higher than expected levels may indicate occupational exposure. Your healthcare provider will interpret the results in context of your work history and recommend appropriate steps, which may include workplace safety review or additional testing.
Do I need to fast before this test?
No fasting is typically required for this urine test. However, follow any specific instructions provided by your healthcare provider.
  1. 1
    TOXNET - 4-Tert-butylphenolSource
  2. 2
    NIOSH - Chemical AgentsSource

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