Skip to content

Amphetaminesstlql

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

This test detects the presence of amphetamines in your stool sample.

Quick summary

{"Checks for amphetamine drug presence in stool","Used to monitor drug use or treatment compliance","Results are typically reported as positive or negative"}

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

Key facts at a glance

LOINC
12350-5
Short code
Amphetamines Stl Ql
Synonyms
Amphetamines Stl Ql
Category
chemistry
Sample
stool
Container
Clean container
Units
N/A
Fasting
false
Population
adult
Sex
all
Age range
18–65 years
Specimen volume
5 g
Stability
Refrigerated: 24h, Frozen: 7d
TAT
4–24 hours
Order
routine

What is this test?

The Amphetamines test in stool is a laboratory test that checks whether amphetamine-type stimulants are present in your stool sample. Amphetamines are a class of stimulant drugs that include substances like amphetamine, methamphetamine, and related compounds. This test uses chemical methods to detect the presence of these drugs or their metabolites in the feces.

While urine testing is more common for detecting amphetamines, stool testing may be used in specific clinical situations, such as when urine testing is not feasible, or when healthcare providers need additional information about drug exposure or metabolism.

Clinical interpretation

How abnormal results are interpreted and what conditions they suggest.

This test may be used to monitor patients in substance abuse treatment programs, verify compliance with prescribed medications that contain amphetamines (such as those for ADHD or narcolepsy), or investigate unexplained symptoms that might be related to amphetamine use. A positive result indicates that amphetamines or their metabolites were detected in the stool sample. The test can help healthcare providers assess drug exposure history and guide appropriate treatment decisions.

Frequently asked questions

How is the stool sample collected?
You will be provided with a sterile collection container. Collect a small amount of stool (about the size of a walnut) in a clean, dry container. Avoid mixing urine or water with the sample. Follow your healthcare provider's instructions for sample collection and transport.
Do I need to prepare for this test?
No special preparation is typically required. However, inform your healthcare provider about any medications, supplements, or substances you have recently taken, as some substances may affect test results.
What do the results mean?
Results are typically reported as 'Positive' (drug detected) or 'Negative' (drug not detected). A positive result indicates the presence of amphetamines in your stool. Your healthcare provider will interpret the results in the context of your medical history and clinical situation.
Are there any risks associated with this test?
Stool sample collection is generally safe and non-invasive. There are no significant risks associated with this test.
  1. 1
    MedlinePlus - AmphetaminesSource
  2. 2
    Mayo Clinic Laboratories - Amphetamines, Qualitative, StoolSource

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