Amphetaminesmecql
This test checks if a newborn baby has been exposed to amphetamine-type stimulant drugs while in the womb by testing the baby's first stool (meconium).
{"Detects prenatal exposure to amphetamine/methamphetamine in newborns","Uses meconium (baby's first stool) as the sample","Helps identify infants who may need special care for drug withdrawal","Important for early intervention and appropriate medical management","Results help healthcare providers plan necessary follow-up care"}
Key facts at a glance
- LOINC
- 8144-8
- Short code
- Amphetamines Mec Ql
- Synonyms
- Amphetamines Mec Ql
- Category
- chemistry
- Sample
- serum
- Container
- Red-top tube (SST)
- Units
- N/A
- Fasting
- false
- Population
- adult
- Sex
- all
- Age range
- 18–65 years
- Specimen volume
- 5 mL
- Stability
- Room temperature: 4h, Refrigerated: 24h, Frozen: 7d
- Hemolysis max
- 500
- Lipemia max
- 1000
- Icterus max
- 500
- TAT
- 4–24 hours
- Order
- routine
What is this test?
The Amphetamines in Meconium test is a laboratory test that detects whether a newborn baby has been exposed to amphetamine-type stimulant drugs during pregnancy. These drugs include amphetamine and methamphetamine (commonly known as speed or crystal meth). The test analyzes the baby's first stool, called meconium, which accumulates in the intestines during the last few months of pregnancy.
How does it work?
When a pregnant person uses amphetamine-type drugs, these substances can cross the placenta and enter the baby's bloodstream. The drugs then accumulate in the baby's meconium as the fetal intestines develop. Unlike urine tests, which can only detect recent drug use, meconium testing can detect drug exposure that occurred during the second and third trimesters of pregnancy, providing a longer detection window.
Why is this test performed?
This test is typically performed shortly after birth when there is a concern about possible maternal drug use during pregnancy. It may be ordered if the mother has a history of drug use, if the baby shows signs of drug withdrawal, or as part of routine screening in certain healthcare settings. Early identification of drug exposure helps healthcare providers give the baby the appropriate care and monitoring they need.
What happens during the test?
The test requires a small sample of meconium, which is typically collected from the baby's diaper shortly after birth. The sample is then sent to a laboratory for analysis. The test looks for the presence of amphetamine and/or methamphetamine using specialized testing methods. Results are usually available within a few days.
Clinical interpretation
How abnormal results are interpreted and what conditions they suggest.
◆Associated findings1
Frequently asked questions
Does a positive result mean the mother is currently using drugs?
Will the baby need treatment if the test is positive?
Is this test mandatory?
Can false positives occur?
What should I do if my baby tests positive?
Sources
- 1
- 2
- 3
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