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What is this test?

The Amphetamine/Methamphetamine Urine Screen is a laboratory test that detects the presence of amphetamine and methamphetamine in your urine. These are stimulant drugs that affect the central nervous system. This test uses a screening method to identify whether these substances or their metabolites are present in your urine sample.

Why might I need this test?

Your healthcare provider may order this test for several reasons: pre-employment drug screening, random workplace drug testing, monitoring patients in substance abuse treatment programs, evaluating suspected drug overdose, or monitoring compliance with prescribed medications containing these substances.

How do I prepare for this test?

No special preparation is typically required for this test. You should inform your healthcare provider about all medications, supplements, and over-the-counter drugs you are taking, as some may affect the test results. For workplace or legal testing, specific chain-of-custody procedures may apply.

What do the results mean?

Results are typically reported as either 'Negative' (not detected) or 'Positive' (detected). A negative result means no amphetamines were found in your urine at the time of testing. A positive result indicates the presence of these substances, but does not necessarily indicate impairment. A positive screening test is usually followed by confirmatory testing (such as gas chromatography-mass spectrometry) to verify the result.

Are there any limitations?

This test has some limitations. Certain prescription medications (such as some ADHD medications, weight loss drugs, or decongestants) may cause false positive results. The detection window varies depending on factors like dosage, frequency of use, metabolism, and kidney function. Generally, amphetamines can be detected in urine for 1-3 days after use.