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Amphetctourscnmcnc

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

A urine test that detects the presence of amphetamine and methamphetamine to screen for drug use.

Quick summary

{"Screens for amphetamine and methamphetamine use through a urine sample","Commonly used for workplace, legal, or clinical drug monitoring","Results are typically reported as positive or negative (qualitative)","Can detect drug use for several days after consumption","Certain prescription medications may cause false positive results"}

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

Key facts at a glance

LOINC
19347-4
Short code
Amphet CtO Ur Scn-mCnc
Synonyms
Amphet CtO Ur Scn-mCnc
Category
chemistry
Sample
urine
Container
Sterile urine container
Units
N/A
Fasting
false
Population
adult
Sex
all
Age range
18–65 years
Method
screen
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 Amphetamine Urine Screening Test is a chemical analysis that detects the presence of amphetamine and methamphetamine in your urine. It is a preliminary (screening) test used to determine whether these stimulants have been used recently. This test does not measure the amount of drug in your system—it only indicates whether the drug is present above a certain cutoff threshold.

Why do I need this test?

Healthcare providers may order this test for several reasons: workplace or pre-employment drug screening, monitoring patients in substance abuse treatment programs, legal or forensic investigations (such as court-ordered testing), evaluation of unexplained symptoms that may be related to drug use, or monitoring medication compliance for prescribed stimulant medications.

How is the test performed?

A urine sample is collected in a sterile container. The collection process is similar to a standard urine test—you will be given private instructions to provide a 'clean catch' sample. The sample is then sent to a laboratory where it is analyzed using immunoassay techniques to detect the presence of amphetamines. If the screening test is positive, confirmatory testing (such as gas chromatography-mass spectrometry) may be performed to verify the results.

Understanding your results

Results are typically reported as either Negative (no amphetamines detected above the cutoff level) or Positive (amphetamines detected above the cutoff level). A negative result means no amphetamines were found in your urine at the time of testing, or the level was below the detection threshold. A positive result indicates that amphetamines were detected, but it does not tell you the amount used or when exactly it was taken. Your healthcare provider will interpret these results in the context of your medical history and current situation.

Clinical interpretation

How abnormal results are interpreted and what conditions they suggest.

◆Associated findings1

Frequently asked questions

How long can amphetamines be detected in urine?
Amphetamines can typically be detected in urine for 1-3 days after use, though this varies based on factors such as the specific drug, dosage, frequency of use, individual metabolism, and kidney function. Chronic or heavy use may result in detection for longer periods, up to a week or more.
Can any medications cause a false positive result?
Yes, certain prescription and over-the-counter medications may cause false positive results on amphetamine screening tests. These include some decongestants (such as pseudoephedrine), certain antidepressants, and medications containing amphetamine-like compounds. Always inform your healthcare provider about all medications, supplements, and herbal products you are taking before the test.
Does a positive test mean I am addicted?
No, a positive screening test alone does not indicate addiction or dependence. It only shows that amphetamines were present in your system at the time of testing. Your healthcare provider will consider the test results along with other clinical information to determine if there is a substance use concern that requires further evaluation or treatment.
Will the test detect prescription ADHD medications?
Yes, prescription stimulant medications used to treat ADHD (such as Adderall, Ritalin, or Dexedrine) contain amphetamine or methamphetamine derivatives and will likely produce a positive result on this screening test. If you are taking prescription stimulant medications, it is important to disclose this to the testing facility and provide documentation of your prescription.
Is there any preparation needed before the test?
No special preparation is typically required for a urine screening test. However, you should inform your healthcare provider about all medications you are currently taking, including prescription drugs, over-the-counter medications, and supplements. Drinking normal amounts of fluids before the test is acceptable.
  1. 1
    Lab Tests Online - AmphetamineSource
  2. 2
    MedlinePlus - Drug TestingSource
  3. 3
    Mayo Clinic - Drug testing: Types and differencesSource

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