A 37-year-old female diagnosed with attention-deficit hyperactive disorder (ADHD) presented for her annual Adderall (amphetamine and d-amphetamine) compliance testing visit and prescription refill.
The confirmatory amphetamine urine test results were as follows:
Drug |
Result |
Cut-off |
Amphetamine |
15,988 ng/mL |
< 25 ng/mL |
Methamphetamine |
58 ng/mL |
< 25 ng/mL |
Phentermine |
negative |
< 25 ng/mL |
MDA |
negative |
< 25 ng/mL |
MDMA |
negative |
< 25 ng/mL |
Pseudoephedrine/ephedrine |
negative |
< 25 ng/mL |
This patient also had a history of polysubstance abuse (methamphetamines and cocaine); however, self-reported as being in remission for a number of years. Based on the results, the provider was concerned that the patient had relapsed and started abusing methamphetamine again.
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Sarah Delaney, Ph.D. Fellow, Clinical Chemistry Mayo Clinic |
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Loralie Langman, Ph.D. Consultant, Clinical Biochemistry Mayo Clinic Professor of Laboratory Medicine and Pathology Mayo Clinic College of Medicine and Science |
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Paul Jannetto, Ph.D. Consultant, Clinical Biochemistry Mayo Clinic Associate Professor of Laboratory Medicine and Pathology Mayo Clinic College of Medicine and Science |