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HelpTest Code TGSU Targeted Gabapentinoid and Stimulant High-Resolution Accurate Mass Spectrometry Screen, Random, Urine
Additional Testing Requirements
In most cases, no additional testing is needed after the qualitative targeted stimulant test is performed if the parent drug or metabolites found are consistent with the patient's prescribed medications. However, if an unexpected stimulant is found, confirmatory testing can be requested at an additional charge.
Specimen Required
Supplies: Sarstedt Aliquot Tube 5 mL (T914)
Collection Container/Tube: Plastic urine container
Submission Container/Tube: Plastic vial
Specimen Volume: 1 mL
Collection Instructions:
1. Collect a random urine specimen.
2. No preservative
Useful For
Determining compliance or identifying illicit stimulant drug use
This test is not intended for employment-related testing.
Profile Information
| Test ID | Reporting Name | Available Separately | Always Performed |
|---|---|---|---|
| LPPS | List prescribed stimulants | No | Yes |
| TSIM | Gabapentinoid/Stim MS Screen, U | No | Yes |
Special Instructions
Method Name
Liquid Chromatography Tandem Mass Spectrometry, High-Resolution Accurate Mass (LC-MS/MS HRAM)
Reporting Name
Gabapentinoid/Stim HRMS Screen, USpecimen Type
UrineSpecimen Minimum Volume
0.5 mL
Specimen Stability Information
| Specimen Type | Temperature | Time |
|---|---|---|
| Urine | Refrigerated (preferred) | 14 days |
| Frozen | 28 days |
Reference Values
Not detected (Positive results are reported with qualitative "Present" results)
Cutoff concentrations:
Methamphetamine: 100 ng/mL
Amphetamines: 100 ng/mL
3,4-Methylenedioxymethamphetamine (MDMA): 100 ng/mL
3,4-Methylenedioxy-N-ethylamphetamine (MDEA): 100 ng/mL
3,4-Methylenedioxyamphetamine (MDA): 100 ng/mL
Ephedrine: 100 ng/mL
Pseudoephedrine: 100 ng/mL
Phentermine: 100 ng/mL
Phencyclidine (PCP): 20 ng/mL
Methylphenidate: 20 ng/mL
Ritalinic acid: 100 ng/mL
Gabapentin: 500 ng/mL
Pregabalin: 500 ng/mL
Day(s) Performed
Monday through Sunday
Report Available
3 to 4 daysPerforming Laboratory
Mayo Clinic Laboratories in Rochester
Test Classification
This test was developed and its performance characteristics determined by Mayo Clinic in a manner consistent with CLIA requirements. It has not been cleared or approved by the US Food and Drug Administration.CPT Code Information
G0480
80326 (if appropriate for select payers)
LOINC Code Information
| Test ID | Test Order Name | Order LOINC Value |
|---|---|---|
| TGSU | Gabapentinoid/Stim HRMS Screen, U | 99107-5 |
| Result ID | Test Result Name | Result LOINC Value |
|---|---|---|
| LPPS | List prescribed stimulants | 29305-0 |
| 624198 | Methamphetamine | 19554-5 |
| 624199 | Amphetamine | 19343-3 |
| 624200 | 3,4-methylenedioxymethamphetamine (MDMA) | 19568-5 |
| 624201 | 3,4-methylenedioxy-N-ethylamphetamine (MDEA) | 59844-1 |
| 624202 | 3,4-methylenedioxyamphetamine (MDA) | 19565-1 |
| 624203 | Ephedrine | 99108-3 |
| 624204 | Pseudoephedrine | 99109-1 |
| 624205 | Phentermine | 19674-1 |
| 624206 | Phencyclidine (PCP) | 19659-2 |
| 624207 | Methylphenidate | 19577-6 |
| 624208 | Ritalinic acid | 99110-9 |
| 624209 | Gabapentin | 68439-9 |
| 624210 | Pregabalin | 105953-4 |
| 624211 | Stimulant Interpretation | 54247-2 |