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22387 CA 125

CA 125
Test Code: CA-125
Synonyms/Keywords
​Cancer Antigen-125, Ovarian Cancer Antigen, CA125
Useful For
​The primary role of CA-125 is to monitor reoccurrence of possible tumors following therapy in subjects diagnosed with ovarian carcinoma.
Specimen Requirements
Fasting Required Specimen Type Preferred Container/Tube Acceptable Container/Tube Specimen Volume Specimen Minimum Volume
(allows for 1 repeat)
Pediatric Minimum Volume
(no repeat)
No​ Serum​Serum Separator Tube (SST)​Red Top Tube (RTT)​0.5 mL​0.4 mL​0.3 mL​
Collection Processing Instructions
​Samples collected in a RTT must be removed from the clot within one hour for storage or transport. Samples collected in gel barrier tubes must be removed from the primary tube prior to transporting to Marshfield. Do not send the primary collection tube.
Specimen Stability Information
Specimen Type Temperature Time
​Serum Ambient​ 8 hours​
Refrigerated​ 24 hours​
Frozen​ >24 hours​
Interference
​Human Anti-Murine Antibodies (HAMA) may develop leading to test interference in patient receiving murine-based agents for chemotherapy or tumor-imaging studies.
Performing Laboratory Information
Performing Location Day(s) Test Performed Analytical Time Methodology/Instrumentation
​Marshfield Monday through Sunday​Less than 2 hours​Two-site Sandwich Immunoassay using Direct Chemiluminometric Technology/Siemens Centaur
Reference Range Information
Performing Location Reference Range
Marshfield​ < or = 30.2 U/mL  ​
Outreach CPTs
CPT Modifier
(if needed)
Quantity Description Comments
86304 ​
Synonyms/Keywords
​Cancer Antigen-125, Ovarian Cancer Antigen, CA125
Ordering Applications
Ordering Application Description
​Centricity ​CA-125-Centocor
​Cerner ​CA 125
​COM ​CA-125
If the ordering application you are looking for is not listed, contact your local laboratory for assistance.
Specimen Requirements
Fasting Required Specimen Type Preferred Container/Tube Acceptable Container/Tube Specimen Volume Specimen Minimum Volume
(allows for 1 repeat)
Pediatric Minimum Volume
(no repeat)
No​ Serum​Serum Separator Tube (SST)​Red Top Tube (RTT)​0.5 mL​0.4 mL​0.3 mL​
Collection Processing
​Samples collected in a RTT must be removed from the clot within one hour for storage or transport. Samples collected in gel barrier tubes must be removed from the primary tube prior to transporting to Marshfield. Do not send the primary collection tube.
Specimen Stability Information
Specimen Type Temperature Time
​Serum Ambient​ 8 hours​
Refrigerated​ 24 hours​
Frozen​ >24 hours​
Interference
​Human Anti-Murine Antibodies (HAMA) may develop leading to test interference in patient receiving murine-based agents for chemotherapy or tumor-imaging studies.
Useful For
​The primary role of CA-125 is to monitor reoccurrence of possible tumors following therapy in subjects diagnosed with ovarian carcinoma.
Reference Range Information
Performing Location Reference Range
Marshfield​ < or = 30.2 U/mL  ​
For more information visit:
Performing Laboratory Information
Performing Location Day(s) Test Performed Analytical Time Methodology/Instrumentation
​Marshfield Monday through Sunday​Less than 2 hours​Two-site Sandwich Immunoassay using Direct Chemiluminometric Technology/Siemens Centaur
For billing questions, see Contacts
Outreach CPTs
CPT Modifier
(if needed)
Quantity Description Comments
86304 ​
For most current information refer to the Marshfield Laboratory online reference manual.