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Test Code 1898 Cancer Antigen 125 (CA 125)

Performing Laboratory

Barnes-Jewish Hospital Laboratory


Cobas ECLIA electrochemiluminescence

Literature Reference:

Package insert: Cancer Antigen 125 CA 125 II. Roche Corporation. 10/2014

Specimen Requirements

Specimen Type: Plasma
Container/Tube: Mint green tube 

Specimen Volume: Full tube


Day(s) Test Set Up

Monday through Sunday

Turnaround Time:
STAT: not available
Routine: results available 2-4 hours of receipt

Reference Values

1 - 35 Units/mL

Literature References:

Tietz Fundamentals of Clinical Chemistry, 5th Edition, Editors: Burtis CA and Ashwood ER, Chapter 24, p. 642. W.B. Saunders Company, 2014

Test Classification and CPT Coding


Additional Information

For BJH Laboratory Use Only
Alternate Container/Tube:
Plain red top

Analyte Stability:

See Analyte Stability Chart in Special Instructions.

Laboratory Processing Instructions:

Test performed in BJH Core lab.  Processed by automated line and delivered to Cobas 8000 for anaylsis. Aliquot sample stored frozen for 3 months and original specimens are stored refrigerated for 5 days.

Specimen Transport Temperature


Special Instructions

LOINC Code Information

Name LOINC Code
Cancer Antigen 125, Serum 10334-1