Amphetamine Urine Drug Test with Reflex to D/L Isomers
|
Specimen Type: Urine
|
|
Description:
Drug Test - Amphetamine/Methamphetamine with Reflex to D & L Isomers (Labcorp)
This test looks for Amphetamine in a urine sample. In the event of a positive result, additional testing to measure the level of both amphetamine and methamphetamine will be performed at no additional cost. If the sample tests positive for methamphetamine, further testing to measure the levels of D & L isomers will also be performed. Please note that D & L Isomer testing will only be performed if there is a positive result for methamphetamine.
What is the difference between Amphetamine and Methamphetamine?
Amphetamines are a class of stimulant drugs that can be used to treat several conditions, such as Attention Deficit Hyperactivity Disorder (ADHD) or narcolepsy. Methamphetamines are an illicit drug made from mixing amphetamines with other substances. Methamphetamine is known by several "street names" such as meth, crank, speed, or ice. The potency of methamphetamine can be as much as 4x that of amphetamines used in medications.
What can cause you to test positive for Methamphetamine?
Most drug tests will provide differentiated results for amphetamine and methamphetamine when a sample tests positive for amphetamines. This can help to determine if a person is testing positive due to legal medications or drug abuse. However, there are some over-the-counter and prescribed medications that may cause a person to test positive for methamphetamine.
What are D and L isomers?
There are 2 types of methamphetamine, levo-methamphetamine (L-methamphetamine) and dextro-methamphetamine (D-methamphetamine). They both have the same chemical formula, but their atoms are arranged differently. D-methamphetamine has a stronger stimulating and psychoactive effect than L-methamphetamine and therefore has a higher potential for abuse. In most cases, legal medications that cause a person to test positive for methamphetamine will have a higher concentration of L-methamphetamine and little to no D-methamphetamine. The inverse is also true. Most positive results for illicit methamphetamine use will have higher concentrations of D-methamphetamine than L-methamphetamine.
Why should you order a D & L Isomer Test?
Most standard drug tests do not measure the level of D and L isomers when a sample tests positive for methamphetamine. Measuring these 2 forms of methamphetamine is a positive sample can help to differentiate between someone who is abusing meth and someone testing positive due to their medication. This test can be ordered as a follow-up when someone tests positive for methamphetamine. It may also be ordered when someone is suspected of abusing meth but also takes medications that could cause a false positive.
For more testing options, please see our Drug Testing Category.
Turnaround for test results is typically up to 3 business days when results are negative. If additional testing is necessary, results may take up to 7 business days.
Where can I find an Amphetamine D/L Isomer Drug Test near me?
Check our lab finder to locate a collection site in your area.
At this time, Request A Test does not offer DOT (Department of Transportation) certified testing.
Note: Result turn around times are an estimate and are not guaranteed. Our reference lab may need additional time due to weather, holidays, confirmation/repeat testing, or equipment maintenance.
Requirements:
Not all lab locations are able to perform the collections for urine drug testing. When placing a testing order online, you will only be able to select from lab locations that are able to perform this type of testing.
Please note: This test will not be submitted to a Medical Review Officer (MRO). We offer Rapid Urine Drug Testing and Saliva Drug Testing that will include an MRO review only if at least one positive result appears on the test results. Please contact Request A Test with any questions.
This test is intended to screen for drugs of abuse and is not appropriate for pain management or therapeutic monitoring. Customers who require pain management testing should consult their prescribing physician.
Categories: