Test Overview
Test Methodology
Liquid Chromatography-Tandem Mass Spectrometry (LC-MS/MS)
Test Usage
Determining the level of antimicrobial in serum from treated patients.
Reference Range *
Peak: >25 mcg/mL, Toxic: >100 mcg/mL.
Test Details
Days Set Up
Tuesday, Thursday
Analytic Time
3 - 9 days
Soft Order Code
FLUC
MiChart Code
5-Flucytosine Level
Synonyms
- 5-Fluorocytosine
- Flucytosine
- Ancoban
- 5-Flucytosine
- Fluorocytosine
- 5-FC
Laboratory
Sendout
Reference Laboratory
Mayo FLUC (82741)
Section
Special Testing
Specimen Requirements
Collection Instructions
Collect specimen in a red top or SST tube. Centrifuge, aliquot serum into a plastic vial within 2 hours of collection and refrigerate (preferred). Serum for a peak level should be drawn 30 minutes after completion of infusion of an intravenous dose or 1 - 2 hours after an oral dose; trough specimens should be drawn immediately prior to next scheduled dose.
Alternate Specimen
CSF is an acceptable specimen. [4/02]
Normal Volume
0.5 mL serum
Minimum Volume
0.3 mL serum
Rejection Criteria
SST tube not acceptable.
Additional Information
Test sent to Mayo Medical Laboratories.
Billing
CPT Code
80299
Fee Code
20526