Cancer antigen 125 (CA 125)
- Test Name:
- Cancer antigen 125 (CA 125)
- Synonyms:
-
C125
CA125
Ovarian tumour marker
- Collection Device/Tube Type:
-
1. EDM Base Lab: 5 mL blood - GOLD SST (gel)
2. CGY DSC: 4.5 mL blood - MINT LIHEP PST (gel)
3. NOTE: GOLD SST is also acceptable at CGY DSC
- Submission Requirements:
- 1 mL serum or lithium heparin plasma
- Handling/Storage Comments:
-
• Refrigerated transport preferred, but not required (Except South Zone, samples must be refrigerated transport)
• If a transport delay of > 48 hours is expected between specimen collection and receipt at Edmonton Base Lab or Calgary DSC, transport refrigerated
• If a transport delay of > 5 days is expected between specimen collection and receipt at Edmonton Base Lab or Calgary DSC then:
• spin and aliquot serum or plasma into the tubes below:
Edmonton Base Lab: 16 x 75 mm tube
Calgary DSC: Roche False Bottom Tube (preferred) or 12 x 75 mm tube (acceptable)
• freeze
• transport frozen - Frequency of Testing:
-
Daily
- Reference Range:
-
Gender
CA 125 (kU/L)
Female
< 36
Male
No reference interval available
Unknown/X
Interpret result based on appropriate reference interval listed above
- Comments:
- Biotin taken in doses >1 mg/day may interfere. For more information, see Biotin Interference
- Last Reviewed:
- 28 February 2024
