Ketamine and Norketamine, Serum

Test Overview

Test Methodology

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

Test Usage

Therapeutic drug monitoring.

Reference Range *

Reporting limit determined by each analysis

* Reference ranges may change over time. Please refer to the original patient report when evaluating results.

Test Details

Days Set Up

Monday - Sunday

Analytic Time

8 - 14 days

Soft Order Code

FKEMS

Synonyms

Ketalar

Laboratory

Sendout

Reference Laboratory

Mayo FKEMS (NMS)

Section

Special Testing

Specimen Requirements

Collection Instructions

Collect specimen in an EDTA lav top tube; do not use PST tube. Centrifuge, aliquot serum into a plastic vial, and refrigerate. Sodium heparin plasma is also acceptable.

Normal Volume

3 mL plasma

Minimum Volume

0.9 mL plasma

Storage Temperature

Refrigerated preferred, ambient or frozen acceptable

Rejection Criteria

PST tube not acceptable.

Additional Information

If Ketamine and Metabolite Screen is positive, then Ketamine and Metabolite Confirmation will be performed at an additional charge. By ordering this test the clinician acknowledges that additional reflex testing will be performed and billed at a separate additional charge if indicated. Test sent to Mayo Medical Laboratories; performed by NMS Labs.

Billing

CPT Code

80307

Fee Code

AA942

Reflex CPT

80357

Reflex Fee Code

AA943