Skip to content

Understanding Your Lab Test: What It Is, How It Is Done, and What Your Results Mean

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

A urine test that detects the presence of amphetamines, a type of stimulant drug.

Quick summary

{"This test checks if amphetamine-type drugs are present in your urine","It can detect both illegal drugs (like methamphetamine) and certain prescription medications","Results are typically reported as positive or negative","The test is often used for workplace drug screening or medical monitoring"}

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

Key facts at a glance

LOINC
105967-4
Short code
Amphet Ur Ql
Synonyms
Amphet Ur Ql
Category
chemistry
Sample
urine
Container
Sterile urine container
Units
N/A
Fasting
false
Population
adult
Sex
all
Age range
18–65 years
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, and why might my health care provider recommend it for me?

The urine amphetamine test is a screening test that detects the presence of amphetamine-type stimulants in your urine. Amphetamines are a class of drugs that stimulate the central nervous system, including illegal substances like methamphetamine and prescription medications used for conditions like attention deficit hyperactivity disorder (ADHD) or narcolepsy.

How is this test performed, and what should I expect during the appointment or procedure?

A urine sample is collected in a sterile container. The sample is then analyzed in a laboratory using immunoassay techniques, which can detect even small amounts of amphetamines. If the initial test is positive, a confirmatory test (such as gas chromatography-mass spectrometry) may be performed to verify the results.

What do the results of this test mean, and how will my doctor use them to guide my care?

Results are typically reported as either "Positive" (meaning amphetamines were detected) or "Negative" (meaning no amphetamines were found above the detection threshold). A positive result may indicate recent use of prescription ADHD medications, over-the-counter cold medications containing pseudoephedrine, or illegal stimulant drugs.

Clinical interpretation

How abnormal results are interpreted and what conditions they suggest.

This test is commonly used for workplace drug screening programs, substance abuse monitoring, and in certain medical settings. It helps healthcare providers identify recent use of stimulant medications or illicit drugs. For patients prescribed amphetamine medications (such as Adderall, Vyvanse, or Dexedrine), a positive result may be expected and should be discussed with the ordering provider.

Frequently asked questions

How long do amphetamines stay in urine?
Amphetamines can typically be detected in urine for 1-3 days after use, depending on the specific drug, dosage, individual metabolism, and frequency of use. Chronic users may have longer detection windows.
Can prescription medications cause a positive result?
Yes. Certain prescription medications containing amphetamines (like those for ADHD) or even some over-the-counter cold medications containing pseudoephedrine or phenylephrine may cause a positive result. Always inform the testing facility about all medications you are taking.
Is this test painful?
No. The test only requires providing a urine sample, which is painless and non-invasive.
Do I need to prepare for this test?
No special preparation is typically required. However, you should inform your healthcare provider about all medications, supplements, and over-the-counter drugs you are taking before the test.
  1. 1
  2. 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.

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