Test Overview
Test Methodology

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

Test Usage

Therapeutic drug monitoring.

Reference Range *

5 - 20 ng/ml

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

Test Details
Days Set Up
Daily
Analytic Time

6 - 11 days

Soft Order Code
MMLR
Synonyms
    Laboratory
    Sendout
    Reference Laboratory
    Mayo FHAL (90119) (MedTox 125)
    Section
    Special Testing
    Specimen Requirements
    Collection Instructions

    Collect blood in 7 ml red or green top tube; do not use SST/PST tube. Centrifuge, aliquot serum or plasma into plastic vial and store at room temperature or refrigerate.

    Normal Volume
    2 ml serum or plasma
    Minimum Volume
    0.5 ml serum or plasma
    Storage Temperature
    Refrigerated preferred, frozen acceptable
    Rejection Criteria
    SST or PST tube not acceptable.
    Additional Information

    Test sent to Mayo Medical Laboratories; performed by MedTox Laboratories.

    Billing
    CPT Code
    80346
    Fee Code
    32083
    NY State Approved
    No