Test Overview
Test Methodology

High Performance Liquid Chromatography with Fluorescence Detection

Reference Range *

The expected serum concentration in patients on usual daily dosages is up to 5 mcg/mL. Toxic: >50 mcg/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

7 - 12 days

Soft Order Code
MMLR
Laboratory
Sendout
Reference Laboratory
Mayo FFURO (91119) (MedTox 373)
Section
Special Testing
Specimen Requirements
Collection Instructions

Collect trough specimen in a green top or red top tube. Centrifuge, aliquot plasma or serum into a plastic vial and refrigerate.

Normal Volume
1 mL plasma or serum
Minimum Volume
0.25 mL plasma or serum
Additional Information

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

Billing
CPT Code
80375
Resources