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This test measures the level of 1,4-dichlorobenzene in your blood to assess exposure to this chemical.
{"1,4-dichlorobenzene is a chemical found in some household products like air fresheners and moth repellents","This test checks if you have been exposed to this chemical through blood sample analysis","High levels may indicate excessive exposure which can affect liver and kidney function","The test is typically ordered for occupational health monitoring or suspected poisoning cases","Results are reported as mass/volume concentration in blood"}
Key facts at a glance
- LOINC
- 38290-3
- Short code
- 1,4-DCB
- Synonyms
- 1,4DCB Wat-mCnc
- Category
- chemistry
- Sample
- serum
- Container
- Red-top serum tube or serum separator tube (SST)
- Units
- N/A
- Fasting
- false
- Population
- adult
- Sex
- all
- Age range
- ≥ 18 years
- Method
- Headspace Gas Chromatography-Mass Spectrometry (HS-GC-MS)
- CPT
- 82418
- SNOMED
- 413671005
- Specimen volume
- 2-5 mL of serum
- Stability
- Refrigerated (2-8°C) for up to 7 days; frozen (-20°C) for longer storage; protect from light
- Hemolysis max
- 50
- Lipemia max
- 100
- Icterus max
- 20
- TAT
- 72–168 hours
- Order
- routine
What is this test?
The 1,4-dichlorobenzene blood test measures the concentration of 1,4-dichlorobenzene in your serum (the liquid part of your blood). This chemical is commonly used in household products such as toilet bowl fresheners, mothballs, and air fresheners. The test helps determine if you have been exposed to elevated levels of this potentially harmful substance.
How is the test performed?
A healthcare professional will draw a blood sample from a vein in your arm. The sample is then sent to a laboratory where it is analyzed using specialized equipment to measure the amount of 1,4-dichlorobenzene present. No special preparation is typically required, but you should inform your doctor about any medications or supplements you are taking.
What do the results mean?
Results are typically reported as a concentration (mass/volume). Your healthcare provider will interpret the results based on reference ranges and your specific situation. Elevated levels may indicate recent exposure to 1,4-dichlorobenzene, which can occur through inhalation, skin contact, or ingestion. The test helps assess occupational exposure or investigate symptoms potentially related to chemical exposure.
Reference range
No established clinical reference range for serum 1,4-dichlorobenzene; results reported as detected/not detected or quantitative value compared to exposure limitsN/A
No specific fasting required; avoid exposure to products containing 1,4-dichlorobenzene (mothballs, air fresheners, pesticides) for 24-48 hours prior to collection if possible; document occupational and environmental exposure history
Clinical interpretation
How abnormal results are interpreted and what conditions they suggest.
◆Associated findings1
Frequently asked questions
Why is this test ordered?
Is the test dangerous?
How long does it take to get results?
What happens if my levels are high?
Sources
- 1
- 2
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 15, 2026. · Read our editorial policy