Gold Top

Tube Type

Test ID   LAB69
EPIC Order
CPT Code(s)   82746
Group/Individual Test   Individual
Laboratory   Core Laboratory
Tube Station   30
Specimen Routine: 4 mL blood/serum separator tube/gold top/red top acceptable;  see Comments
  Micro: 500µL blood/serum separator bullet/red top
Room temperature: <8 hours recommended
Refrigerator: 48 hours
Frozen: 30 days
Availability Routine: 24 hrs/day
Turnaround Time   4 hrs
Reference Range Normal: >5.4 ng/mL

Hemolyzed Specimens Rejected. Heterophilic antibodies may cause interference. 

Methotrexate and leucovorin interfere with folate measurement due to cross-reaction with folate-binding proteins.

Reviewed by jcayless on December 28, 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