Published on May 28, 2019


Tube Type 

Test ID   LAB15661
CPT Code(s)   80399; G0480 (if appropriate)
Group/Individual Test   Individual
Laboratory   Core Referral Testing
Tube Station   30
Specimen Routine: 4 mL blood / red top tube/No SST;  see Comments
   Micro: 1.2 mL blood
Availability Routine: Reference Laboratory-Mayo Clinic Laboratories
Turnaround Time   3-8 days
Reference Range Normal: see separate report

Sample must be spun and separated within 2 hours of collection

Trough specimens are recommended (i.e. draw immediately before next dose)

Reviewed by jcarr on December 03, 2021

Note: Reference ranges provided on this web site are for guidance only, and may not reflect the most recent changes. Refer to laboratory reports for current reference data.

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