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HelpTest Code CA125 CA 125
Laboratory Code
LAB155
Specimen Requirements
Specimen Type: Serum
Container/Tube: Gold Top (SSTII)
Volume: 5.0 mL
Minimum Volume: 0.5 mL serum
Collection Instructions: Allow specimen to clot for 30 mins and centrifuge within 2 hrs.
Specimen Stability
| Specimen Type | Serum |
|---|---|
| Ambient | 24 hours |
| Refrigerate | 7 days |
| Frozen | 24 weeks |
Methodology
Chemiluminescent Immunoassay
Days and Times Performed
24 hrs, TAT 1 day
Specimen Condition
| Gross Haemolysis | Alert/Reject |
|---|---|
| Icterus | OK |
| Lipaemia | OK |
| Others | Not applicable |
Reference Interval
| Age | Male | Female |
|---|---|---|
| 0 – 3 mths | 2 – 22 U/mL | 2 – 22 U/mL |
| 4 mths – 4 yrs | 8 – 33 U/mL | 8 – 33 U/mL |
| 5 – 10 yrs | 5 – 30 U/mL | 5 – 30 U/mL |
| 11 – 18 yrs | 5 – 28 U/mL | 6 – 39 U/mL |
| ≥ 19 yrs | ≤ 35 U/mL | ≤ 35 U/mL |
Testing Laboratory
National University Hospital
Clinical Chemistry, 67724346
Useful For
Tumour marker for ovarian cancer.
Service Code
31870
LOINC Code Information
83082-8
Alias
Cancer Antigen 125
Carbohydrate Antigen 125
Ovarian Cancer-Related Antibodies
Update
Last updated 10/03/2025