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Laboratory Medicine

Test catalogue

Gabapentin (Neurontin)

Test Name

Gabapentin (Neurontin)

Red Tube with thin top Specimen Type / Requirements

Container Type = 1 Red Top

Minimum Volume = 2 ml serum

Tube must fill to at least ½ or greater of its vacuum capacity

Specimen Handling

Collection Instructions: collect sample in gold or red top tube. Plasma (Heparin Green Top; EDTA Lavender Top) is acceptable. Write your initials, date and time of collection on the collection label.

Laboratory Staff Instructions: Separate from cells within 2 hours of collection. Submit two 1 mL aliquots. Store and send frozen

Rejection Criteria: Plasma, gel-separator, Gross hemolysis, Unlabeled or Not Sufficient Quantity Samples will be rejected.


Transportation: Send sample to core lab as soon as possible.

Required Documentation

Turnaround Time (TAT)

6 Days

Test Utilization

Routine > 6 Days

Reference Value

12.0 - 120.0 µmol/L

Minimum effective concentration is 12 µmol/L

A desirable clinical outcome 70.0 -120.0 µmol/L.

Toxicity may occur with increasing Utilization above 146.0 µmol/L

Test code




Testing Location

Referred Out – ON, Canada (ROICL02)

Other Information

Last Updated: June 06, 2019