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Test Code Epic LAB470 Gabapentin, Serum

Additional Codes

SQ code GABAPM

Mayo code GABA

Reporting Name

Gabapentin, S

Specimen Type

Serum Red

Performing Laboratory

Mayo Clinic Laboratories in Rochester

Useful For

Monitoring serum gabapentin concentrations

 

Assessing compliance

 

Adjusting dosage in patients


Specimen Required


Supplies: Sarstedt Aliquot Tube, 5 mL (T914)

Collection Container/Tube: Red top (serum gel/SST is not acceptable)

Submission Container/Tube: Plastic vial

Specimen Volume: 1 mL

Collection Instructions:

1. Collect specimen immediately before next scheduled dose.

2. Within 2 hours of collection, centrifuge and aliquot serum into plastic vial.


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

Reference Values

2.0-20.0 mcg/mL

 

Toxic Range: ≥25.0 mcg/mL

Day(s) Performed

Monday through Saturday

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

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

Reject Due To

Gross hemolysis OK
Gross lipemia OK
Gross icterus OK

Method Name

Liquid Chromatography Tandem Mass Spectrometry (LC-MS/MS)

Method Description

Gabapentin and the internal standard are separated from other serum constitutes with analysis on a tandem mass spectrometer equipped with an electrospray ion source using multiple reaction monitoring.(Unpublished Mayo method)

Report Available

Same day/1 to 2 days

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)

Secondary ID

80826