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Lab Dept:
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Chemistry
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Test Name:
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NEURONTIN LEVEL
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General Information
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Lab Order Codes:
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NEUR
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Synonyms:
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Gabapentin
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CPT Codes:
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82542 - Column chromatography/mass spectrometry, analyte not elsewhere specified; quantitative, single stationary and mobile phase
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Test Includes:
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Neurontin/Gabapentin concentration in ug/mL.
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Logistics
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Test Indications:
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Monitoring serum concentrations, assessing compliance, assessing signs of toxicity.
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Lab Testing Sections:
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Chemistry - Sendouts
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Referred to:
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MedTox Laboratories (Test# 160)
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Phone Numbers:
Minneapolis:
Saint Paul:
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612-813-6280
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651-220-6550
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Test Availability:
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Daily, 24 hours
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Turnaround Time:
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1 – 3 days
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Special Instructions:
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If this is a STAT order, please check with the provider to see if the specimen should be shipped immediately and performed STAT by the reference lab at an additional cost. If immediate shipment is necessary, please call the lab to make arrangements.
Draw immediately before next scheduled dose.
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Specimen
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Specimen Type:
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Blood
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Container:
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Red top tube [Alternate: Green (Lithium Heparin) tube]
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Draw Volume:
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6 mL (Minimum: 0.6 mL) blood
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Processed Volume:
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2 mL (Minimum: 0.2 mL) serum/plasma
Note: Submission of the minimum amount does not allow for repeat analysis and may result in a QNS (quantity not sufficient) test result.
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Collection:
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Routine venipuncture
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Special Processing:
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Lab Staff: Centrifuge specimen within 2 hours of collection, remove plasma aliquot into a screw-capped round bottom plastic vial. Store and ship at refrigerated temperatures. Forward promptly.
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Patient Preparation:
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None
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Sample Rejection:
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Mislabeled or unlabeled specimens
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Interpretive
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Reference Range:
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4.0 – 16.0 ug/mL
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Critical Values:
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N/A
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Limitations:
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MedTox: Reporting limit 0.5 ug/mL
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Methodology:
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MedTox: Liquid Chromatography/Tandem Mass Spectrometry (LC/MS/MS)
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References:
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MedTox Laboratories (December 2010)
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Updates:
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1/14/2010: Plasma no longer accepted. Units change from ug/mL to mcg/mL.
5/6/2010: CPT updates
12/6/2010: Information updated for MedTox, Mayo information no longer referenced. All specimens to be sent to MedTox.
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