Test Code GABA Gabapentin, Serum
Additional Codes
Mayo Test ID |
---|
GABA |
Epic Test ID |
LAB470 |
Sunquest Code |
GABA |
Reporting Name
Gabapentin, SUseful For
Monitoring serum gabapentin concentrations Assessing compliance Adjusting dosage in patientsMethod Name
Liquid Chromatography-Tandem Mass Spectrometry (LC-MS/MS)Performing Laboratory

Specimen Type
Serum RedSpecimen Required
Collection Container/Tube: Red top (serum gel/SST is not acceptable)
Submission Container/Tube: Plastic vial
Specimen Volume: 1 mL
Collection Instructions:
1. Draw blood immediately before next scheduled dose.
2. Centrifuge and aliquot serum into plastic vial within 2 hours of collection.
Specimen Minimum Volume
0.2 mL
Specimen Stability Information
Specimen Type | Temperature | Time | Special Container |
---|---|---|---|
Serum Red | Refrigerated (preferred) | 28 days | |
Ambient | 28 days | ||
Frozen | 28 days |
Reject Due To
Gross hemolysis | OK |
Gross lipemia | OK |
Gross icterus | OK |
Reference Values
2.0-20.0 mcg/mL
Toxic Range: ≥25.0 mcg/mL
Day(s) and Time(s) Performed
Tuesday through Friday; 12 a.m. Saturday; 12 a.m., 4 p.m.Test Classification
This test was developed and its performance characteristics determined by Mayo Clinic in a manner consistent with CLIA requirements. This test has not been cleared or approved by the U.S. Food and Drug Administration.CPT Code Information
80171
LOINC Code Information
Test ID | Test Order Name | Order LOINC Value |
---|---|---|
GABA | Gabapentin, S | 9738-6 |
Result ID | Test Result Name | Result LOINC Value |
---|---|---|
80826 | Gabapentin, S | 9738-6 |
Forms
If not ordering electronically, complete, print, and send 1 of the following forms with the specimen:
-Neurology Specialty Testing Client Test Request (T732)
-Therapeutics Test Request (T831)