Amphetaminesspecmcnc
A serum test that detects the presence of amphetamine drugs in your blood to monitor treatment or check for substance use.
{"This test measures amphetamine levels in blood serum","Used to monitor prescribed medications or detect illicit drug use","Sample is collected through a blood draw from a vein","Results help healthcare providers assess drug levels and treatment effectiveness"}
Key facts at a glance
- LOINC
- 48939-3
- Short code
- Amphetamines Spec-mCnc
- Synonyms
- Amphetamines Spec-mCnc
- 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 Amphetamine Blood Test is a laboratory test that measures the amount of amphetamine substances in your blood serum. Amphetamines are stimulant drugs that affect the central nervous system. This test can detect both legally prescribed medications (such as those used to treat attention deficit hyperactivity disorder or narcolepsy) and illicit substances (such as methamphetamine or ecstasy).
Why is this test performed?
Your healthcare provider may order this test for several reasons: to monitor the effectiveness of prescribed amphetamine medications and ensure proper dosing, to check for compliance with treatment plans, to detect accidental or intentional overdose, or to investigate suspected illicit amphetamine use. The test may also be required for certain employment screenings or legal investigations.
How is the test performed?
A healthcare professional will draw a small sample of blood from a vein in your arm using a needle. The blood sample will be sent to a laboratory for analysis. The procedure typically takes only a few minutes and is generally well-tolerated with minimal discomfort.
What do the results mean?
Results are reported as either positive (present) or negative (not detected), or may show specific concentration levels. A positive result indicates that amphetamines were found in your blood. Your healthcare provider will interpret the results based on your medical history, the specific medication you may be taking, and the reason for the test. Therapeutic levels are expected if you are taking prescribed amphetamines, while any detection of illicit substances may require further discussion and treatment planning.
Clinical interpretation
How abnormal results are interpreted and what conditions they suggest.
◆Associated findings1
Frequently asked questions
Do I need to fast before this test?
How long does it take to get results?
Will prescribed medications affect my test results?
Is this test confidential?
What should I do if my test is positive for illicit substances?
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