Biomarkers · Chemical
CA 125
This test measures the amount of a protein called CA-125 (cancer antigen 125) in a sample of your blood. CA-125 is a type of tumor marker.
CA-125 Blood Test (Ovarian Cancer), MedlinePlus, National Library of Medicine
- Also listed as
- total calcium, serum calcium, ca, Cancer Antigen 125, ca-125
- Primary unit
- U/mL
- LOINC codes
- 10334-1
- Tests that measure CA 125
- Labcorp 5, Quest Diagnostics 3
Ranges
Each lab publishes a reference range for the population groups it tests, usually the middle 95% of results. These intervals describe that population, not an optimal or healthy target. How ranges differ
Quest Diagnostics, CA 125 with HAMA Treatment 17717
| Population | Interval |
|---|---|
| CA 125, HAMA Treated | <35 U/mL |
| CA 125, Untreated | <35 U/mL |
Quest Diagnostics, ROMA™ (Risk of Ovarian Malignancy Algorithm) 91155
| Population | Interval |
|---|---|
| ROMA Premenopausal | <1.31 |
| ROMA Postmenopausal | <2.77 |
| CA125 | <35 U/mL |
| HE4, Ovarian CA Monitoring | Not stated |
| Female Premenopausal | ≤70 pmol/L |
| Female Postmenopausal | ≤140 pmol/L |
Tests
Check the catalog code, specimen, method and preparation for every test that measures CA 125. Select up to five tests to compare them side by side.
Labcorp 5 tests
Single-analyte tests
Cancer Antigen (CA) 125 002303
Serum · Fasting not stated · Turnaround Within 1 day
Labcorp catalog pageMethod and collection
- Method
- Electrochemiluminescence immunoassay (ECLIA)
- Preparation
- It is suggested that the assay not be performed until at least three weeks after the completion of primary chemotherapy and at least two months following abdominal surgery.
- Collection
- If a red-top tube is used, transfer separated serum to a plastic transport tube.
- Reference notes
- • Female: 0.0−38.1 units/mL • Male: Not established
Cancer Antigen (CA) 125 (Serial Monitor) 480061
Serum · Fasting not stated · Turnaround 1 - 3 days
Labcorp catalog pageMethod and collection
- Collection
- If a red-top tube is used, transfer separated serum to a plastic transport tube.
Cancer Antigen (CA) 125 in the Presence of Human Antimouse Antibodies (HAMA) 144733
Serum · Fasting not stated · Turnaround 4 - 5 days
Labcorp catalog pageMethod and collection
- Method
- Electrochemiluminescence immunoassay (ECLIA)
- Preparation
- It is suggested that the assay not be performed until at least three weeks after the completion of primary chemotherapy and at least two months following abdominal surgery.
- Collection
- If a red-top tube is used, transfer separated serum to a plastic transport tube.
- Reference notes
- • Female: 0.0−38.1 units/mL • Male: Not established
Panels that include this biomarker
Ovarian Cancer Monitor 081610
2 analytes · Serum · Fasting not stated · Turnaround 1 - 3 days
Labcorp catalog pageMethod and collection
- Method
- HE4: enzyme-linked immunosorbent assay (ELISA); CA 125: electrochemiluminescence immunoassay (ECLIA)
- Collection
- If red-top tube is used, transfer separated serum to a plastic transport tube.
Ovarian Malignancy Risk (ROMA®) 140045
4 analytes · Serum · Fasting not stated · Turnaround 1 - 3 days
Labcorp catalog pageMethod and collection
- Method
- Electrochemiluminescence Immunoassay (ECLIA)
- Collection
- If a red-top tube is used, transfer separated serum to a plastic transport tube.
Quest Diagnostics 3 tests
Single-analyte tests
CA 125 29256
Serum · Fasting not stated · Turnaround Set up: Tues-Sat; Report available: 5 days
Quest Diagnostics catalog pageMethod and collection
- Method
- Immunoassay (IA)
- Reference notes
- <35 U/mL
Panels that include this biomarker
CA 125 with HAMA Treatment 17717
3 analytes · Serum · Fasting not stated · Turnaround Set up: Mon-Fri
Quest Diagnostics catalog pageMethod and collection
- Method
- Immunoassay (IA)
ROMA™ (Risk of Ovarian Malignancy Algorithm) 91155
3 analytes · Serum · Fasting not stated · Turnaround Set up: Tues, Thurs (p.m.)
Quest Diagnostics catalog pageMethod and collection
- Method
- Calculation (CALC) • Chemiluminescent Microparticle Immunoassay (CMIA)
- Collection
- Sample collected in red-top tube must be allowed to clot for at least 30 minutes but no longer than 1 hour.
0 of 5 tests selected
Pick one moreSources
5 tests: codes, specimens, methods, preparation and reference intervals.
Quest Diagnostics test catalog
3 tests: codes, specimens, methods, preparation and reference intervals.
MedlinePlus, National Library of Medicine
The description at the top of this page.
LOINC 10334-1
Regenstrief Institute codes that identify the same result across labs.
Search ClinicalTrials.gov for CA 125
Registered studies that measure CA 125, on the U.S. National Library of Medicine registry.
Verify these ranges and sources
We compile this page from named laboratory catalogs, guidelines and studies. Labs calculate reference intervals from the people they test, for one assay method and one population group, so an interval describes that population rather than an optimal target.
Interpret your own results with a licensed clinician, or track your lab history and health goals in Aumnivida.
Spotted an error? Email hello@biomarkerlens.com with the page URL and the primary source that corrects the entry.