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JWH-250 5-Carboxypentyl Metabolite/Creatinine Ratio, Urine

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

A urine test for a metabolite of JWH-250, a synthetic cannabinoid, normalized to the urine creatinine level.

Quick summary

["A detectable result can indicate recent exposure to JWH-250 or a related synthetic cannabinoid."]

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

Key facts at a glance

LOINC
72803-0
Short code
JWH-250 5-carboxypentyl/Creat Ur
Synonyms
JWH-250 5-carboxypentyl/Creat Ur
Category
kidney
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

What is this test?

This urine test measures a breakdown product, called 5-carboxypentyl metabolite, associated with JWH-250. JWH-250 is a synthetic cannabinoid sometimes found in products sold as cannabis or Spice.

Why might I need this test?

This test may be used when recent synthetic cannabinoid use is suspected, such as after unexplained symptoms, workplace testing, or drug screening. It detects a metabolite rather than the active substance itself.

How is the test performed?

A urine specimen is analyzed in the laboratory for the JWH-250 metabolite. The result is compared with the creatinine level in the same sample because creatinine helps account for differences in urine concentration.

How do I prepare for the test?

Follow the collection instructions provided by the laboratory or clinician. Fasting is generally not required, but collecting too much liquid or taking unusual amounts of water before collection can dilute the urine and affect the result.

Clinical interpretation

How abnormal results are interpreted and what conditions they suggest.

A detectable or elevated result can indicate recent exposure to JWH-250, although timing and the amount of exposure may affect detection. A negative result does not completely exclude use, especially if the sample was collected late or the exposure involved a closely related compound. The result should be interpreted by a healthcare professional in the context of the clinical situation and other tests.

Short name

JWH-250 Urine Metabolite Test

Frequently asked questions

What does a positive result mean?
It means that a metabolite associated with JWH-250 was detected in the urine. This can support recent exposure but cannot determine the exact amount used or when it was used.
Can this test distinguish JWH-250 from other synthetic cannabinoids?
It primarily targets a metabolite associated with JWH-250. Some synthetic cannabinoids can produce or share similar metabolites, so a broader drug-testing panel may sometimes be needed.
How long after use can the metabolite be detected?
Detection depends on the dose, frequency of use, individual metabolism, and urine collection time. The window can vary, so a negative result should not be treated as definitive proof that use never occurred.
  1. 1
    MedlinePlus — Laboratory TestsSource
  2. 2
    Lab Tests OnlineSource
  3. 3
    Mayo Clinic — Tests & ProceduresSource

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