CA19-9 , serum
Clinical Background:
CA 19‐9 is a glycolipid antigen existing as a high molecular weight mucin glycoprotein. It cannot be detected in the 3-7% of the general population who cannot produce this antigen. It is used large...
CA 19‐9 is a glycolipid antigen existing as a high molecular weight mucin glycoprotein. It cannot be detected in the 3-7% of the general population who cannot produce this antigen. It is used largely for monitoring pancreatic and biliary tract cancer which occurs more frequently in men (2.5x females) with a peak incidence at 50-60 years. Combining CEA and CA19-9 measurement can increase sensitivity. The half life of CA19-9 is approximately 7 hours.
Test Details
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Discipline:
Biochemistry
Biochemistry
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Specimen Container Adult:
Serum (SST or plain tube)
Serum (SST or plain tube)
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Specimen Container Paediatric:
Serum (SST or plain tube)
Serum (SST or plain tube)
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Minimum Volume Adult:
1 mL blood
1 mL blood
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Minimum Volume Paediatric:
0.5 mL
0.5 mL
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Sample Stability:
Unseparated: 7 days
Separated:
- At 15-25C - 7 days
- At 2-8C - 30 days
- At -20C - 3 months
Unseparated: 7 days
Separated:
- At 15-25C - 7 days
- At 2-8C - 30 days
- At -20C - 3 months
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Reference Ranges:
0 – 34 kU/L
0 – 34 kU/L
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Other Info:
lithium heparin plasma sample also acceptable
lithium heparin plasma sample also acceptable
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Routine Contact Name:
Duty Biochemist
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Routine Telephone:
Freeman: 0191 244 8889
RVI: 0191 282 9719Freeman: 0191 244 8889
RVI: 0191 282 9719 -
Routine Email: