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Amphetaminesurqlscn1000ngml

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

This test detects the presence of amphetamine-type stimulant drugs in your urine using a screening method with a cutoff threshold of 1000 ng/mL.

Quick summary

{"Screens for amphetamine and methamphetamine use in urine samples","Results are reported as positive if the level exceeds 1000 ng/mL","A positive result typically indicates use within the past 2-4 days","Positive screenings often require confirmation with more specific testing","Commonly used for medical monitoring, workplace testing, or legal purposes"}

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

Key facts at a glance

LOINC
14308-1
Short code
Amphetamines Ur Ql Scn>1000 ng/mL
Synonyms
Amphetamines Ur Ql Scn>1000 ng/mL
Category
chemistry
Sample
urine
Container
Sterile urine container
Units
N/A
Fasting
false
Population
adult
Sex
all
Age range
18–65 years
Method
screen-ng-ml
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?

The Amphetamines Urine Screen is a diagnostic test that checks whether amphetamine-type stimulant drugs are present in your urine. These drugs include amphetamine and methamphetamine, which are central nervous system stimulants. The test uses a screening method (immunoassay) that can quickly indicate whether drug use has occurred.

How is the test performed?

A urine sample is collected and analyzed using an immunoassay technique. This method detects the presence of amphetamines by identifying specific antibodies that react with drug metabolites. The result is compared against the cutoff threshold of 1000 ng/mL. If the detected level exceeds this threshold, the result is reported as positive.

Why might I need this test?

Healthcare providers may order this test for various reasons: monitoring patients in addiction treatment programs, verifying compliance with medication regimens (such as ADHD treatment), pre-employment screening, or evaluating patients with symptoms of stimulant use. It may also be used in emergency settings when substance use is suspected.

What do the results mean?

A NEGATIVE result means no amphetamines were detected above the 1000 ng/mL threshold at the time of testing. A POSITIVE result indicates that amphetamines were detected above this level, suggesting recent use within approximately 2-4 days prior to testing. A positive screening test typically requires confirmatory testing (such as gas chromatography-mass spectrometry) to verify the specific substance and rule out false positives.

Clinical interpretation

How abnormal results are interpreted and what conditions they suggest.

◆Associated findings1

Frequently asked questions

How long do amphetamines stay in urine?
Amphetamines can typically be detected in urine for 2-4 days after use, depending on factors such as dosage, frequency of use, individual metabolism, body mass, and urine pH. Chronic or heavy use may result in longer detection windows.
Can medications cause a false positive result?
Certain medications and substances may cause false positive results, including some antidepressants (like bupropion), certain decongestants, and medications containing pseudoephedrine or phenylephrine. It is important to inform your healthcare provider of all medications and supplements you are taking.
Will I need additional testing if my screening is positive?
Yes, a positive screening test typically requires confirmatory testing using a more specific method like gas chromatography-mass spectrometry (GC-MS) to verify the result and identify the specific substance. This helps rule out false positives and provides more accurate information.
Can this test tell how much drug was used?
No, this screening test only indicates whether the drug level is above or below the 1000 ng/mL threshold. It does not quantify the exact amount used. Quantitative testing would be required to determine specific levels.
Is the test confidential?
Test results are protected by healthcare privacy laws (such as HIPAA in the United States) and are part of your protected medical record. However, if the test is conducted for employment or legal purposes, results may be shared according to specific policies governing those situations.
  1. 1
    MedlinePlus - Drug TestingSource
  2. 2
    Mayo Clinic Laboratories - Amphetamine Screen, Qualitative, UrineSource
  3. 3
    American College of Medical Toxicology - Drug Testing GuidelinesSource

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