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Understanding Your Medical Test: A Comprehensive Guide to What It Is, How It Is Performed, What the Results Mean, and Why You Might Need It

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

This test detects the presence of 25I-NBOMe, a potent synthetic hallucinogen, in urine samples using confirmatory testing methods.

Quick summary

{"Detects 25I-NBOMe, a synthetic psychedelic drug also known as 'N-bomb' or '25I'","Uses confirmatory testing methods for highly accurate results","May be ordered for emergency department visits, substance abuse monitoring, or forensic investigations","A positive result indicates recent use of this synthetic hallucinogen","Results are confidential and typically shared only with the ordering healthcare provider"}

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

Key facts at a glance

LOINC
74000-1
Short code
25I-NBOMe U
Synonyms
25I-NBOMe Ur Ql Cfm
Category
chemistry
Sample
urine
Container
Clean, dry, leak-proof plastic urine container with secure lid
Units
N/A
Fasting
false
Population
adult
Sex
all
Age range
13–120 years
Method
confirm
CPT
80307
SNOMED
373549005
Specimen volume
Minimum 10 mL, preferred 20-30 mL
Stability
Room temperature: 24-48 hours; Refrigerated (2-8°C): 7 days; Frozen (-20°C or below): 30 days. Store protected from light.
Hemolysis max
0
Lipemia max
0
Icterus max
0
TAT
48–168 hours
Order
routine

This test is a medical procedure that gathers important information about your health by analyzing a sample taken from your body, such as blood, urine, or tissue. It can help detect the presence of certain diseases, evaluate how well your organs are working, and guide your doctor in making decisions about your care. The test is routine and safe, and the results are used to understand your current medical status or to monitor changes over time.

The 25I-NBOMe urine test is a confirmatory laboratory test that detects the presence of 25I-NBOMe (also called 25I, NBOMe, or 'N-bomb') in urine. 25I-NBOMe is a powerful synthetic hallucinogen belonging to the NBOMe series of substances, which are known for their potent psychedelic effects. This test uses specialized confirmatory methods to accurately identify the drug or its metabolites in the urine sample.

The test is performed by a trained healthcare professional who will collect a sample from you, typically by drawing blood from a vein in your arm, having you provide a urine sample, or taking a small tissue sample with a swab. The collection process is quick and usually causes minimal discomfort. After the sample is collected, it is sent to a laboratory where specialized equipment analyzes it and produces a report for your doctor to review.

A urine sample is collected from the patient, typically in a healthcare setting or laboratory. The sample is then analyzed using confirmatory testing methods, which may include techniques like liquid chromatography-tandem mass spectrometry (LC-MS/MS). These methods are highly specific and can accurately detect even small amounts of the drug or its metabolites. The test provides a qualitative result, indicating whether 25I-NBOMe is present or absent in the urine.

The results of this test can indicate whether your values are within the normal range or if there are any abnormalities that may signal a health condition. Your doctor will interpret the results in the context of your medical history, symptoms, and other test results. It is important to understand that abnormal results do not always mean you have a serious problem, and sometimes further testing is needed. Your doctor will explain what the numbers mean for you specifically and discuss next steps.

A 'positive' result means that 25I-NBOMe or its metabolites were detected in the urine, indicating recent use of this synthetic hallucinogen. A 'negative' result means the drug was not detected in the urine at the time of testing. It's important to note that the absence of detection does not necessarily rule out drug use, as the substance may have already been eliminated from the body or concentrations may be below the test's detection threshold.

You might need this test if your doctor wants to screen for a potential health issue, diagnose a suspected condition based on symptoms you are experiencing, monitor the progression of a chronic disease, or check how well a treatment is working. It can also be part of a routine checkup to ensure your body is functioning normally. The test provides critical information that helps your doctor make informed decisions about your health care, so it is often recommended when there is a reason to evaluate your overall well-being.

Healthcare providers may order this test for several reasons: evaluating patients in emergency departments who present with symptoms of drug intoxication or overdose; monitoring individuals in substance abuse treatment programs; conducting forensic investigations; or as part of comprehensive toxicology screening when synthetic drug use is suspected. The test helps healthcare providers make informed decisions about patient care and treatment.

Reference range

Not DetectedN/A

Specimen: urine

No special preparation required. Provide a clean-catch midstream urine specimen. Avoid first morning sample if possible. Inform the laboratory of any medications or supplements being taken.

Clinical interpretation

How abnormal results are interpreted and what conditions they suggest.

◆Associated findings1

Frequently asked questions

How long does 25I-NBOMe stay in urine?
The detection window for 25I-NBOMe in urine typically ranges from 24 to 72 hours after use, though this can vary based on factors such as dosage, individual metabolism, hydration status, and kidney function. Chronic use may result in longer detection times.
Is this test painful?
No, the urine test is completely painless. You simply provide a urine sample in a private collection container. No blood draw or needles are required for this particular test.
Will my employer or insurance company know my results?
Test results are protected by patient privacy laws and are typically shared only with the ordering healthcare provider and the patient. Results are not automatically reported to employers or insurance companies unless specifically required by law or with explicit patient consent for specific purposes like legal proceedings.
Can a positive result be caused by anything other than 25I-NBOMe use?
Confirmatory testing methods like LC-MS/MS are highly specific and unlikely to produce false positives from other substances. However, it's important to disclose all medications, supplements, and substances you have recently taken to your healthcare provider, as certain compounds may potentially interfere with test results.
What happens if my test is positive?
If your test is positive, your healthcare provider will discuss the results with you and may recommend appropriate treatment, counseling, or referrals to substance abuse specialists. The specific course of action depends on your individual situation, symptoms, and medical history.
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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