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HelpTest Code CA25 Cancer Antigen 125 (CA 125), Serum
Specimen Required
Patient Preparation: For 12 hours before specimen collection do not take multivitamins or dietary supplements containing biotin (vitamin B7), which is commonly found in hair, skin, and nail supplements and multivitamins.
Collection Container/Tube:
Preferred: Serum gel
Acceptable: Red top
Submission Container/Tube: Plastic vial
Specimen Volume: 1 mL
Collection Instructions: Centrifuge and aliquot serum into plastic vial.
Children's Mercy Hospital
Note:
CMH COLLECTION: 2 mL in red gel vacutainer
Specimen Minimum Volume
0.75 mL
Specimen Stability Information
| Specimen Type | Temperature | Time | Special Container |
|---|---|---|---|
| Serum | Refrigerated (preferred) | 5 days | |
| Frozen | 168 days |
Useful For
Evaluating individuals' response to ovarian cancer therapy
Predicting recurrent ovarian cancer
This test is not useful for cancer detection screening in the normal population.
Reject Due To
| Gross hemolysis | OK |
| Gross lipemia | OK |
Day(s) Performed
Monday through Friday
Report Available
1 to 3 daysReporting Name
Cancer Ag 125 (CA 125), SReference Values
Males: Not applicable
Females: <46 U/mL
Method Name
Electrochemiluminescent Immunoassay (ECLIA)
Performing Laboratory
Mayo Clinic Laboratories in Rochester
CPT Code Information
86304