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Hydroquinone in Urine (Mass Concentration)

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

This test measures the amount of hydroquinone, a chemical compound, present in your urine. It may be used to monitor exposure to certain industrial or environmental substances.

Quick summary

["This test helps track potential exposure to harmful chemicals in your urine."]

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

Key facts at a glance

LOINC
16999-5
Short code
Hydroquinone Ur-mCnc
Synonyms
Hydroquinone Ur-mCnc
Category
chemistry
Sample
urine
Container
Sterile urine container
Units
N/A
Fasting
false
Population
adult
Sex
all
Age range
18–65 years
Specimen volume
10 mL
Stability
Room temperature: 2h, Refrigerated: 24h, Frozen: 7d
Hemolysis max
0
Lipemia max
0
Icterus max
0
TAT
4–24 hours
Order
routine

Why Might This Test Be Ordered?

Your healthcare provider may recommend this test if you work in industries involving chemicals like dyes, plastics, or rubber manufacturing, or if you have been exposed to environmental contaminants. It could also be part of a broader evaluation for occupational or environmental health concerns.

What Does This Test Involve?

You will provide a urine sample, typically collected over a specific time period (such as 24 hours) or at a single point in time. The sample is then analyzed in a laboratory to measure hydroquinone levels.

What Are Possible Results?

Results are not typically provided with specific numeric ranges, as they depend on exposure levels and individual metabolism. Higher levels may indicate recent exposure to hydroquinone or related substances.

What Does It Mean If My Results Are Abnormal?

Abnormal results might suggest recent exposure to industrial chemicals or environmental contaminants. Your healthcare provider will discuss these findings in the context of your medical history and other tests.

Clinical interpretation

How abnormal results are interpreted and what conditions they suggest.

Hydroquinone is a chemical used in various industrial processes. Prolonged or high-level exposure can pose health risks, including skin irritation, respiratory issues, or more severe systemic effects. This test helps assess exposure levels for monitoring and safety purposes.

Short name

Urine Hydroquinone

Frequently asked questions

What causes elevated hydroquinone levels in urine?
Elevated levels may result from occupational exposure to hydroquinone or similar chemicals, exposure to contaminated environments, or use of certain medications or products containing these compounds.
This test specifically measures hydroquinone in urine, which is distinct from tests for other chemicals like benzene or solvents. It focuses on a particular compound and its metabolic breakdown products in urine.
Yes, lifestyle factors such as diet, hydration, and recent exposure to chemicals can influence results. Avoiding known sources of hydroquinone before testing is recommended for accurate results.
Is this test painful or uncomfortable?
No, this test involves providing a urine sample, which is typically done in a comfortable manner, often at a clinic or lab. There is no discomfort associated with the procedure itself.
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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 16, 2026. · Read our editorial policy