Amphetamines Urine Test (Amphetamine Drug Screen)
A urine test to detect the presence of amphetamine-type stimulants in your system.
{"This test screens for amphetamine drugs like methamphetamine, Adderall, and certain diet pills","A positive result means the drug level exceeded the testing threshold","Positive screens typically require confirmation with a more specific test","Common reasons for testing include employment, sports, and medical monitoring","Results can remain positive for days after last use depending on the substance"}
Key facts at a glance
- LOINC
- 19266-6
- Short code
- Amphetamines CtO Ur Scn-mCnc
- Synonyms
- Amphetamines 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 an amphetamines urine test and why might my doctor order it?
The Amphetamines urine screening test detects the presence of amphetamine-type stimulant drugs in your urine. It uses a cutoff threshold to determine whether the result is positive or negative. If the drug concentration in your urine exceeds this threshold, the test is considered positive. This is a preliminary screening test, not a confirmation of specific drug use.
What are amphetamines and how do they affect the body?
Amphetamines are stimulant drugs that affect the central nervous system. They include legally prescribed medications (such as Adderall for ADHD, Dexedrine, and some obesity treatments) as well as illegal drugs like methamphetamine (meth). These substances can increase alertness, attention, and energy, but they also have potential for abuse and addiction.
How is the amphetamines urine test performed and how should I prepare for it?
You will be asked to provide a urine sample in a clean container. The sample is then analyzed using immunoassay techniques, which detect antibodies that react with amphetamine compounds. The test result is either positive (above the cutoff) or negative (below the cutoff). If positive, confirmatory testing is usually recommended to identify the specific substance.
How long do amphetamines stay in urine after the last use?
The detection window varies depending on the specific drug, dose, frequency of use, and individual factors like metabolism and kidney function. Generally, amphetamines can be detected in urine for 1-3 days after use for single occasions, but may be detectable for longer with chronic or heavy use.
Clinical interpretation
How abnormal results are interpreted and what conditions they suggest.
This test is commonly used in workplace drug testing programs, legal and forensic investigations, sports athletics programs, and substance abuse treatment monitoring. Healthcare providers may also order this test to monitor medication compliance in patients prescribed amphetamine-based medications, or to investigate symptoms that could be related to stimulant use. A positive screening result requires confirmatory testing (such as gas chromatography-mass spectrometry) to accurately identify the specific amphetamine present.
Frequently asked questions
Can a positive result occur from prescription medications?
Will diet pills or cold medications cause a positive result?
Can a positive test be wrong (false positive)?
How long should I wait after taking medication before providing a urine sample?
What happens if my test is positive?
Sources
- 1
- 2
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.
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