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
NY State Approved
No