Understanding Your Laboratory Test: A Patient Guide to Testing, Results, and Possible Risks

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

This test checks for the presence of 25H-NBOMe, a synthetic hallucinogenic drug, in your urine sample.

Quick summary

{"Detects synthetic psychedelic drugs (NBOMe compounds) in urine","Used for forensic toxicology and clinical monitoring","Positive results may indicate recent drug use","Results are confidential but may be shared with healthcare providers","Follow-up testing may be needed to confirm results"}

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

Key facts at a glance

LOINC: 73998-7
Short code: 25HNBOMeU
Synonyms: 25H-NBOMe Ur Ql Cfm
Category: chemistry
Sample: urine
Container: Sterile, non-sterile urine collection container with screw-cap lid
Units: N/A
Ref low: 0
Ref high: 0
Fasting: false
Population: adult
Sex: all
Age range: 18–100 years
Method: confirm
CPT: 80307
SNOMED: 7856003
Specimen volume: 10-50 mL preferred, minimum 5 mL
Stability: Refrigerated (2-8°C) for up to 7 days; Frozen (-20°C) for up to 30 days
Hemolysis max: 0
Lipemia max: 0
Icterus max: 0
TAT: 24–72 hours
Order: routine

The 25H-NBOMe urine test is a specialized confirmatory test that detects the presence of 25H-NBOMe in your urine. NBOMe compounds are synthetic psychedelic drugs that affect the brain's serotonin receptors. They are often found as alternatives to illegal hallucinogens and may be sold in various forms.

How is this test performed and what can I expect during the procedure?

A urine sample is collected and sent to a laboratory for analysis. The confirmatory method used is highly specific and can accurately identify the presence of 25H-NBOMe. The test does not measure the amount of drug, only whether it is present or not.

What do my test results mean and how will my doctor explain them to me?

A 'Presence' or positive result means that 25H-NBOMe was detected in your urine sample. This indicates recent use of this substance. A 'Not Detected' or negative result means no 25H-NBOMe was found in your sample at the time of testing. It is important to note that a negative result does not necessarily mean no drug use, as the substance may have already been eliminated from your body.

Are there any risks or side effects associated with this test?

The test itself carries no medical risks. The urine collection is simple and non-invasive. However, it is important to discuss any positive results with your healthcare provider, as NBOMe compounds can cause serious health effects including hallucinations, elevated heart rate, high blood pressure, and in severe cases, death.

Reference range

Not DetectedN/A

Specimen: urine

Patient should provide a random urine sample. Inform patient that certain substances may interfere with test accuracy. Maintain normal hydration before collection.

Clinical interpretation

How abnormal results are interpreted and what conditions they suggest.

Detection of 25H-NBOMe in urine is primarily used for forensic toxicology, substance abuse monitoring, and clinical assessment in emergency situations. NBOMe compounds are controlled substances in many countries due to their potent effects and potential for harm. Positive results may be relevant in cases of suspected drug intoxication, workplace testing, or legal investigations. Healthcare providers use these results along with clinical symptoms and other findings to guide patient care.

Frequently asked questions

How long does 25H-NBOMe stay in urine?

The detection window varies depending on factors such as dose, individual metabolism, and frequency of use. Generally, NBOMe compounds may be detectable in urine for 1-3 days after use, but this can vary significantly.

Is this test legal?

Testing for controlled substances is legal when ordered by authorized healthcare providers, employers, or for forensic purposes. NBOMe compounds are classified as controlled substances in many jurisdictions.

Will my test results be kept confidential?

Test results are protected under medical privacy laws and are shared only with authorized healthcare providers and as required by law. If the test is ordered by an employer or legal authority, results may be shared with them according to their policies.

What should I do if my result is positive?

If your test is positive, it is important to discuss the results with your healthcare provider. They can provide appropriate guidance, counseling, and referral to substance abuse treatment if needed. NBOMe compounds can be dangerous, and professional help is recommended for anyone struggling with substance use.

Can a positive result be wrong?

The confirmatory method used for this test is highly specific and accurate. However, false positives can rarely occur due to cross-reactivity with other substances or laboratory errors. If you believe your result is incorrect, discuss follow-up testing options with your healthcare provider.

Sources

1
National Institute on Drug Abuse (NIDA) - HallucinogensSource
2
Drug Enforcement Administration (DEA) - NBOMe DrugsSource
3
LOINC Code ReferenceSource

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