Amphetmethampheturql
This test detects the presence of amphetamine and methamphetamine drugs in your urine.
{"Screens for stimulant drugs like amphetamine and methamphetamine in urine","Used for workplace testing, substance abuse monitoring, or medical evaluation","Results are typically reported as positive or negative"}
Key facts at a glance
- LOINC
- 40419-4
- Short code
- Amphet+Methamphet Ur Ql
- Synonyms
- Amphet+Methamphet 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?
The Amphetamine/Methamphetamine urine test is a screening test that detects the presence of stimulant drugs called amphetamines in your urine. These drugs include amphetamine (commonly known as speed) and methamphetamine (commonly known as meth or crystal meth).
How is the test performed?
A urine sample is collected in a clean container. The sample is then analyzed in a laboratory using immunoassay techniques to detect the presence of amphetamine and methamphetamine. If the initial screening test is positive, a confirmatory test may be performed using a more specific method like gas chromatography-mass spectrometry (GC-MS).
Why might I need this test?
This test may be ordered for various reasons: workplace drug testing programs, monitoring individuals in substance abuse treatment, legal or forensic investigations, or as part of a medical evaluation when symptoms suggest drug use.
What do the results mean?
Results are typically reported as either 'Positive' (drug detected) or 'Negative' (no drug detected above the testing threshold). A positive result indicates recent use of amphetamine or methamphetamine. A negative result means no drug was detected, or the drug has already been eliminated from your system.
Clinical interpretation
How abnormal results are interpreted and what conditions they suggest.
◆Associated findings1
Frequently asked questions
How long do these drugs stay in my urine?
Can prescription medications cause a positive result?
Is this test painful?
Can a positive result be wrong?
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