In This Section

Available Tests

  • CA-125, Cancer Antigen 125

CA-125, Cancer Antigen 125

Tube Type

Test ID   LAB155
EPIC Order   CA 125 (CANCER ANTIGEN 125)
CPT Code(s)   86304
Group/Individual Test   Individual
Laboratory   Core Laboratory
Tube Station   30
Specimen Routine: 4 mL blood/serum separator tube/gold top/red top acceptable
  micro: 1 mL blood/gold top/red top



48 hrs

Refrigerator: 7 days
Frozen: 4 weeks

Availability 24 hrs/daily
Turnaround Time   Routine: 2 hours; STAT: 90 minutes
Reference Range Normal: <35 U/mL

Testing is performed using Ortho Clinical Diagnostics CA125 Immunoassay.  Different test methods should not be used interchangeably.  Heterophilic antibodies may cause interference.  High doses of biotin may cause test interference.

Reference Range effective January 20,2005.

Reviewed by Karen Hrischuk on December 13, 2019

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