Yes. Meperidine is one of the 76 compounds in the LabX LC-MS/MS confirmation panel, reported as detected at or above 50 ng/mL. Meperidine is not one of the 12 lines on the LabX 12-panel screen. It is identified by adding laboratory confirmation, which tests for all 76 compounds on the panel.
Meperidine, also known as pethidine, is a synthetic opioid. It is used less often today than in the past, partly because one of its metabolites can build up in the body.
Also known as or found in: Demerol.
Meperidine is prescribed for moderate to severe pain, usually for short periods and often in hospital settings.
Meperidine is measured by liquid chromatography with tandem mass spectrometry (LC-MS/MS), which separates the compounds in a sample and identifies each one by its mass. That is different from a rapid screen, which reacts to a family of drugs and can occasionally react to a related substance. The laboratory reports Meperidine as detected when its concentration is at or above the cut-off of 50 ng/mL, within a reportable range of 50–5,000 ng/mL. It is one of 16 compounds in the opioids and their metabolites family on the 76-drug confirmation panel.
The laboratory's confirmation report lists an approximate detection window of 12-24 hours for Meperidine. Treat that as a rough guide only: how long any compound stays measurable varies with the amount taken, how often it is used, body composition, metabolism, kidney and liver function, and hydration. A laboratory result cannot be used to work out when a substance was taken.
Meperidine is not one of the 12 lines on the LabX 12-panel screen. It is identified by adding laboratory confirmation, which tests for all 76 compounds on the panel.
Meperidine is not detected by standard opiate screens and is identified by laboratory confirmation testing.
Prescription opioid pain medicines, heroin markers and the compounds the body makes from them. Measuring metabolites alongside parent drugs shows a drug was actually processed by the body.
Yes. Meperidine is one of the 76 compounds in the LabX LC-MS/MS confirmation panel, reported as detected at or above 50 ng/mL. Meperidine is not one of the 12 lines on the LabX 12-panel screen. It is identified by adding laboratory confirmation, which tests for all 76 compounds on the panel.
LabX reports Meperidine as detected at or above 50 ng/mL, and the method's reportable range is 50–5,000 ng/mL. A result below the cut-off is reported as not detected; it does not prove none was present.
The laboratory lists an approximate window of 12-24 hours, but it varies with dose, frequency of use, metabolism and hydration, and cannot be used to tell when something was taken.
Meperidine is not one of the 12 lines on the LabX 12-panel screen. It is identified by adding laboratory confirmation, which tests for all 76 compounds on the panel.
Meperidine is prescribed for moderate to severe pain, usually for short periods and often in hospital settings.
Terms on this page: metabolite · cut-off · detection window · presumptive result · confirmation test. More questions: LabX answers.
Test for Meperidine and 75 other compounds
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