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Amphetamine

Urine
Test performed by: LabPLUS Toxicology

Specimen Collection

Casual urine


Reference Intervals

REPORT: The screen is reported as either Detected or Not Detected (qualitative result only).

Uncertainty of Measurement : 10% at the level of 300 ng/mL.



Turnaround Time: Within 1 day

Availability : Drug screens can be performed after hours and on weekends for urgent samples (AED/CED), or if approved by the on-call Chemical Pathologist. The request form must be clearly marked ' Urgent' and the laboratory must be alerted by telephone (via Lablink) before the sample is sent.


Assay Method

Principle : Immunoassay


Diagnostic Use and Interpretation

Drugs detected:
This screening test detects the following amphetamine class drugs: amphetamine, metamphetamine, dexamphetamine, methylenedioxymetamphetamine (MDMA: "ecstasy"), methylenedioxyamphetamine (MDA), pseudoephidrine (in high concentration), ephidrine, and phentermine. The screen does not differentiate between these drugs.

False-positive results may also be seen in patients taking bupropion (Zyban) for nicotine addiction.

If a positive result is found, the specific amphetamine or drug can be determined by liquid chromatography - time of flight (LC-QTOF). This will be performed only during normal working hours.

Clink the link below for more information on Drug screen purposes:

Drug Screen - Evidential purposes

Drug screen- Clinical purposes


Contact Information

The chemical pathology team can be reached via email: chemicalpathologist@adhb.govt.nz or via Lablink (09) 307 4949 ext 22000 or 09-3078995

Emails will receive priority attention from the on-call chemical pathologist. Include the patients NHI.

After-hours: contact Lablink (Auckland City Hospital ext. 22000 or 09-3078995) or hospital operator for on duty staff after hours .




Last updated at 11:42:03 16/01/2026