Published on October 22, 2021

5-Flucytosine, Serum

Tube Type = Gold Top

Tube Type

Test ID   LAB5115
EPIC Order   5-FLUCYOSINE
CPT Code(s)   80299
Group/Individual Test   Group
Laboratory   Core Referral Testing
Tube Station   30
Specimen Routine: 3 mL blood/red plain tube/gold SST also acceptable; See Comments
  Micro: 1 mL
Availability Routine: Referral Laboratory - Mayo Clinic Laboratories
Turnaround Time   3-9 days
Reference Range Normal: See separate report
Comments
  • Peak specimens should be collected 1 to 2 hours after oral dose or 30 minutes after intravenous infusion.
  • Trough specimens should be collected immediately prior to next scheduled dose.

Reviewed by J. Carr on December 12, 2025

UNC Hospitals
McLendon Clinical Laboratories
101 Manning Drive
Chapel Hill, NC 27514